256616460316 has 12 divisors (see below), whose sum is σ = 449120282688. Its totient is φ = 128296379552.

The previous prime is 256616460299. The next prime is 256616460349. The reversal of 256616460316 is 613064616652.

It is a happy number.

It is a super-2 number, since 2×256616460316² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2913841 + ... + 3000616.

It is an arithmetic number, because the mean of its divisors is an integer number (37426690224).

Almost surely, 2^256616460316 is an apocalyptic number.

It is an amenable number.

256616460316 is a deficient number, since it is larger than the sum of its proper divisors (192503822372).

256616460316 is a wasteful number, since it uses less digits than its factorization.

256616460316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5925308 (or 5925306 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 256616460316 in words is "two hundred fifty-six billion, six hundred sixteen million, four hundred sixty thousand, three hundred sixteen".