264403565165040 has 160 divisors (see below), whose sum is σ = 936825960729600. Its totient is φ = 60429816655872.

The previous prime is 264403565164979. The next prime is 264403565165099. The reversal of 264403565165040 is 40561565304462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12356536 + ... + 26105384.

It is an arithmetic number, because the mean of its divisors is an integer number (5855162254560).

Almost surely, 2^{264403565165040} is an apocalyptic number.

264403565165040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264403565165040 is an abundant number, since it is smaller than the sum of its proper divisors (672422395564560).

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

264403565165040 is a wasteful number, since it uses less digits than its factorization.

264403565165040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13760319 (or 13760313 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 51.

The spelling of 264403565165040 in words is "two hundred sixty-four trillion, four hundred three billion, five hundred sixty-five million, one hundred sixty-five thousand, forty".