64523415530 has 64 divisors (see below), whose sum is σ = 133891522560. Its totient is φ = 21929673024.

The previous prime is 64523415529. The next prime is 64523415557. The reversal of 64523415530 is 3551432546.

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, 14390669 + ... + 14395151.

It is an arithmetic number, because the mean of its divisors is an integer number (2092055040).

Almost surely, 2^64523415530 is an apocalyptic number.

64523415530 is an abundant number, since it is smaller than the sum of its proper divisors (69368107030).

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

64523415530 is a wasteful number, since it uses less digits than its factorization.

64523415530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6243.

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 64523415530 in words is "sixty-four billion, five hundred twenty-three million, four hundred fifteen thousand, five hundred thirty".