4256161024272 has 80 divisors (see below), whose sum is σ = 11386025200128. Its totient is φ = 1368568581120.

The previous prime is 4256161024253. The next prime is 4256161024319. The reversal of 4256161024272 is 2724201616524.

It is a super-2 number, since 2×4256161024272² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4103463 + ... + 5034950.

Almost surely, 2^{4256161024272} is an apocalyptic number.

It is an amenable number.

4256161024272 is an abundant number, since it is smaller than the sum of its proper divisors (7129864175856).

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

4256161024272 is a wasteful number, since it uses less digits than its factorization.

4256161024272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9138768 (or 9138762 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 4256161024272 in words is "four trillion, two hundred fifty-six billion, one hundred sixty-one million, twenty-four thousand, two hundred seventy-two".