256724641160074 has 16 divisors (see below), whose sum is σ = 398366247008520. Its totient is φ = 123935901591040.

The previous prime is 256724641160063. The next prime is 256724641160081. The reversal of 256724641160074 is 470061146427652.

It can be written as a sum of positive squares in 4 ways, for example, as 250291858978225 + 6432782181849 = 15820615^2 + 2536293^2 .

It is a super-2 number, since 2×256724641160074² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 256724641159997 and 256724641160024.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73260594 + ... + 76684834.

Almost surely, 2^{256724641160074} is an apocalyptic number.

256724641160074 is a deficient number, since it is larger than the sum of its proper divisors (141641605848446).

256724641160074 is a wasteful number, since it uses less digits than its factorization.

256724641160074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4716905.

The product of its (nonzero) digits is 13547520, while the sum is 55.

The spelling of 256724641160074 in words is "two hundred fifty-six trillion, seven hundred twenty-four billion, six hundred forty-one million, one hundred sixty thousand, seventy-four".