256011112615 has 32 divisors (see below), whose sum is σ = 332583736320. Its totient is φ = 188554552704.

The previous prime is 256011112613. The next prime is 256011112619. The reversal of 256011112615 is 516211110652.

It is a cyclic number.

It is not a de Polignac number, because 256011112615 - 2¹ = 256011112613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256011112613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 645682 + ... + 963808.

It is an arithmetic number, because the mean of its divisors is an integer number (10393241760).

Almost surely, 2^256011112615 is an apocalyptic number.

256011112615 is a deficient number, since it is larger than the sum of its proper divisors (76572623705).

256011112615 is a wasteful number, since it uses less digits than its factorization.

256011112615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318391.

The product of its (nonzero) digits is 3600, while the sum is 31.

The spelling of 256011112615 in words is "two hundred fifty-six billion, eleven million, one hundred twelve thousand, six hundred fifteen".