10645440664432 has 40 divisors (see below), whose sum is σ = 23923868802176. Its totient is φ = 4494237206976.

The previous prime is 10645440664429. The next prime is 10645440664501. The reversal of 10645440664432 is 23446604454601.

It is a super-2 number, since 2×10645440664432² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 709310238 + ... + 709325245.

Almost surely, 2^{10645440664432} is an apocalyptic number.

It is an amenable number.

10645440664432 is an abundant number, since it is smaller than the sum of its proper divisors (13278428137744).

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

10645440664432 is a wasteful number, since it uses less digits than its factorization.

10645440664432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418635565 (or 1418635559 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 49.

The spelling of 10645440664432 in words is "ten trillion, six hundred forty-five billion, four hundred forty million, six hundred sixty-four thousand, four hundred thirty-two".