64452606636 has 48 divisors (see below), whose sum is σ = 168062686848. Its totient is φ = 19054723200.

The previous prime is 64452606619. The next prime is 64452606641. The reversal of 64452606636 is 63660625446.

64452606636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 5949190 + ... + 5960013.

It is an arithmetic number, because the mean of its divisors is an integer number (3501305976).

Almost surely, 2^64452606636 is an apocalyptic number.

64452606636 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

64452606636 is an abundant number, since it is smaller than the sum of its proper divisors (103610080212).

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

64452606636 is a wasteful number, since it uses less digits than its factorization.

64452606636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11909262 (or 11909260 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 48.

The spelling of 64452606636 in words is "sixty-four billion, four hundred fifty-two million, six hundred six thousand, six hundred thirty-six".