264440622466432 has 64 divisors (see below), whose sum is σ = 539966772576000. Its totient is φ = 128929816963584.

The previous prime is 264440622466403. The next prime is 264440622466453. The reversal of 264440622466432 is 234664226044462.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36807588 + ... + 43401379.

It is an arithmetic number, because the mean of its divisors is an integer number (8436980821500).

Almost surely, 2^{264440622466432} is an apocalyptic number.

It is an amenable number.

264440622466432 is an abundant number, since it is smaller than the sum of its proper divisors (275526150109568).

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

264440622466432 is an equidigital number, since it uses as much as digits as its factorization.

264440622466432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80209623 (or 80209611 counting only the distinct ones).

The product of its (nonzero) digits is 63700992, while the sum is 55.

The spelling of 264440622466432 in words is "two hundred sixty-four trillion, four hundred forty billion, six hundred twenty-two million, four hundred sixty-six thousand, four hundred thirty-two".