256726165435202 has 8 divisors (see below), whose sum is σ = 405357103318800. Its totient is φ = 121607130995604.

The previous prime is 256726165435177. The next prime is 256726165435241. The reversal of 256726165435202 is 202534561627652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×256726165435202² (a number of 30 digits) contains 22 as substring.

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, 3377975860952 + ... + 3377975861027.

It is an arithmetic number, because the mean of its divisors is an integer number (50669637914850).

Almost surely, 2^{256726165435202} is an apocalyptic number.

256726165435202 is a deficient number, since it is larger than the sum of its proper divisors (148630937883598).

256726165435202 is a wasteful number, since it uses less digits than its factorization.

256726165435202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6755951722000.

The product of its (nonzero) digits is 36288000, while the sum is 56.

The spelling of 256726165435202 in words is "two hundred fifty-six trillion, seven hundred twenty-six billion, one hundred sixty-five million, four hundred thirty-five thousand, two hundred two".