264716397076656 has 960 divisors, whose sum is σ = 853036260470784. Its totient is φ = 70400694067200.

The previous prime is 264716397076639. The next prime is 264716397076667. The reversal of 264716397076656 is 656670793617462.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 236988716610 + ... + 236988717726.

Almost surely, 2^{264716397076656} 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 264716397076656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426518130235392).

264716397076656 is an abundant number, since it is smaller than the sum of its proper divisors (588319863394128).

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

264716397076656 is a wasteful number, since it uses less digits than its factorization.

264716397076656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138 (or 2125 counting only the distinct ones).

The product of its (nonzero) digits is 2880541440, while the sum is 75.

The spelling of 264716397076656 in words is "two hundred sixty-four trillion, seven hundred sixteen billion, three hundred ninety-seven million, seventy-six thousand, six hundred fifty-six".