1266168288 has 192 divisors, whose sum is σ = 4186570752. Its totient is φ = 325486080.

The previous prime is 1266168271. The next prime is 1266168301. The reversal of 1266168288 is 8828616621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 760545 + ... + 762207.

It is an arithmetic number, because the mean of its divisors is an integer number (21805056).

Almost surely, 2^1266168288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1266168288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2093285376).

1266168288 is an abundant number, since it is smaller than the sum of its proper divisors (2920402464).

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

1266168288 is a wasteful number, since it uses less digits than its factorization.

1266168288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797 (or 1789 counting only the distinct ones).

The product of its digits is 442368, while the sum is 48.

The square root of 1266168288 is about 35583.2585354405. The cubic root of 1266168288 is about 1081.8419322577.

The spelling of 1266168288 in words is "one billion, two hundred sixty-six million, one hundred sixty-eight thousand, two hundred eighty-eight".