264436134504560 has 40 divisors (see below), whose sum is σ = 623990341283856. Its totient is φ = 104195730608640.

The previous prime is 264436134504539. The next prime is 264436134504583. The reversal of 264436134504560 is 65405431634462.

It is a tau number, because it is divible by the number of its divisors (40).

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, 24667544501 + ... + 24667555220.

Almost surely, 2^{264436134504560} is an apocalyptic number.

264436134504560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264436134504560 is an abundant number, since it is smaller than the sum of its proper divisors (359554206779296).

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

264436134504560 is a wasteful number, since it uses less digits than its factorization.

264436134504560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49335099801 (or 49335099795 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 53.

The spelling of 264436134504560 in words is "two hundred sixty-four trillion, four hundred thirty-six billion, one hundred thirty-four million, five hundred four thousand, five hundred sixty".