1150266780 has 288 divisors, whose sum is σ = 3942102528. Its totient is φ = 269568000.

The previous prime is 1150266763. The next prime is 1150266797. The reversal of 1150266780 is 876620511.

1150266780 is a `hidden beast` number, since 11 + 502 + 6 + 67 + 80 = 666.

1150266780 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1150266763) and next prime (1150266797).

It is a super-2 number, since 2×1150266780² = 2646227330343136800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7326462 + ... + 7326618.

It is an arithmetic number, because the mean of its divisors is an integer number (13687856).

Almost surely, 2^1150266780 is an apocalyptic number.

1150266780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1150266780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1971051264).

1150266780 is an abundant number, since it is smaller than the sum of its proper divisors (2791835748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1150266780 is a wasteful number, since it uses less digits than its factorization.

1150266780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 1150266780 is about 33915.5831440357. The cubic root of 1150266780 is about 1047.7705621596.

The spelling of 1150266780 in words is "one billion, one hundred fifty million, two hundred sixty-six thousand, seven hundred eighty".