401255215265465 has 32 divisors (see below), whose sum is σ = 525535963235712. Its totient is φ = 291679536640000.

The previous prime is 401255215265459. The next prime is 401255215265467. The reversal of 401255215265465 is 564562512552104.

It is not a de Polignac number, because 401255215265465 - 2²² = 401255211071161 is a prime.

It is a super-2 number, since 2×401255215265465² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401255215265467) 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, 3742963865 + ... + 3743071065.

It is an arithmetic number, because the mean of its divisors is an integer number (16422998851116).

Almost surely, 2^{401255215265465} is an apocalyptic number.

It is an amenable number.

401255215265465 is a deficient number, since it is larger than the sum of its proper divisors (124280747970247).

401255215265465 is a wasteful number, since it uses less digits than its factorization.

401255215265465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139801.

The product of its (nonzero) digits is 14400000, while the sum is 53.

The spelling of 401255215265465 in words is "four hundred one trillion, two hundred fifty-five billion, two hundred fifteen million, two hundred sixty-five thousand, four hundred sixty-five".