264012515140 has 48 divisors (see below), whose sum is σ = 604920705984. Its totient is φ = 95989942400.

The previous prime is 264012515113. The next prime is 264012515147. The reversal of 264012515140 is 41515210462.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (264012515147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1414050 + ... + 1589830.

It is an arithmetic number, because the mean of its divisors is an integer number (12602514708).

Almost surely, 2^264012515140 is an apocalyptic number.

264012515140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264012515140 is an abundant number, since it is smaller than the sum of its proper divisors (340908190844).

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

264012515140 is a wasteful number, since it uses less digits than its factorization.

264012515140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182628 (or 182626 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 264012515140 in words is "two hundred sixty-four billion, twelve million, five hundred fifteen thousand, one hundred forty".