1151861760 has 264 divisors, whose sum is σ = 4562615616. Its totient is φ = 263208960.

The previous prime is 1151861731. The next prime is 1151861783. The reversal of 1151861760 is 671681511.

1151861760 is a `hidden beast` number, since 11 + 518 + 61 + 76 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 320775 + ... + 324345.

Almost surely, 2^1151861760 is an apocalyptic number.

1151861760 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 1151861760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2281307808).

1151861760 is an abundant number, since it is smaller than the sum of its proper divisors (3410753856).

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

1151861760 is a wasteful number, since it uses less digits than its factorization.

1151861760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3609 (or 3588 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 1151861760 is about 33939.0889683268. The cubic root of 1151861760 is about 1048.2546241439.

The spelling of 1151861760 in words is "one billion, one hundred fifty-one million, eight hundred sixty-one thousand, seven hundred sixty".