401256343403601 has 32 divisors (see below), whose sum is σ = 651373645655040. Its totient is φ = 214604352863424.

The previous prime is 401256343403579. The next prime is 401256343403627. The reversal of 401256343403601 is 106304343652104.

It is not a de Polignac number, because 401256343403601 - 2⁷ = 401256343403473 is a prime.

It is a super-2 number, since 2×401256343403601² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401256343405601) 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, 6058129510 + ... + 6058195743.

It is an arithmetic number, because the mean of its divisors is an integer number (20355426426720).

Almost surely, 2^{401256343403601} is an apocalyptic number.

It is an amenable number.

401256343403601 is a deficient number, since it is larger than the sum of its proper divisors (250117302251439).

401256343403601 is a wasteful number, since it uses less digits than its factorization.

401256343403601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12116325365.

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 401256343403601 in words is "four hundred one trillion, two hundred fifty-six billion, three hundred forty-three million, four hundred three thousand, six hundred one".