2251664424432 has 120 divisors (see below), whose sum is σ = 6887444353920. Its totient is φ = 683617259520.

The previous prime is 2251664424409. The next prime is 2251664424467. The reversal of 2251664424432 is 2344244661522.

2251664424432 is a `hidden beast` number, since 2 + 2 + 5 + 166 + 4 + 42 + 443 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14759557 + ... + 14911332.

It is an arithmetic number, because the mean of its divisors is an integer number (57395369616).

Almost surely, 2^{2251664424432} is an apocalyptic number.

It is an amenable number.

2251664424432 is an abundant number, since it is smaller than the sum of its proper divisors (4635779929488).

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

2251664424432 is a wasteful number, since it uses less digits than its factorization.

2251664424432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29670951 (or 29670942 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 45.

The spelling of 2251664424432 in words is "two trillion, two hundred fifty-one billion, six hundred sixty-four million, four hundred twenty-four thousand, four hundred thirty-two".