264401632035240 has 64 divisors (see below), whose sum is σ = 906519881266560. Its totient is φ = 60434658750720.

The previous prime is 264401632035239. The next prime is 264401632035251. The reversal of 264401632035240 is 42530236104462.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 264401632035192 and 264401632035201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157381922991 + ... + 157381924670.

It is an arithmetic number, because the mean of its divisors is an integer number (14164373144790).

Almost surely, 2^{264401632035240} is an apocalyptic number.

264401632035240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264401632035240 is an abundant number, since it is smaller than the sum of its proper divisors (642118249231320).

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

264401632035240 is a wasteful number, since it uses less digits than its factorization.

264401632035240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314763847682 (or 314763847678 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 264401632035240 in words is "two hundred sixty-four trillion, four hundred one billion, six hundred thirty-two million, thirty-five thousand, two hundred forty".