14057256566421 has 96 divisors (see below), whose sum is σ = 22660964352000. Its totient is φ = 8360049688704.

The previous prime is 14057256566413. The next prime is 14057256566429. The reversal of 14057256566421 is 12466565275041.

14057256566421 is a `hidden beast` number, since 1 + 4 + 0 + 5 + 7 + 2 + 56 + 566 + 4 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (14057256566413) and next prime (14057256566429).

It is not a de Polignac number, because 14057256566421 - 2³ = 14057256566413 is a prime.

It is a super-3 number, since 3×14057256566421³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14057256566429) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 65853100 + ... + 66066218.

It is an arithmetic number, because the mean of its divisors is an integer number (236051712000).

Almost surely, 2^{14057256566421} is an apocalyptic number.

It is an amenable number.

14057256566421 is a deficient number, since it is larger than the sum of its proper divisors (8603707785579).

14057256566421 is a wasteful number, since it uses less digits than its factorization.

14057256566421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213503 (or 213500 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 54.

The spelling of 14057256566421 in words is "fourteen trillion, fifty-seven billion, two hundred fifty-six million, five hundred sixty-six thousand, four hundred twenty-one".