64532004536660 has 48 divisors (see below), whose sum is σ = 136227602784000. Its totient is φ = 25677611245440.

The previous prime is 64532004536653. The next prime is 64532004536803. The reversal of 64532004536660 is 6663540023546.

It is a junction number, because it is equal to n+sod(n) for n = 64532004536599 and 64532004536608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4610882 + ... + 12260678.

It is an arithmetic number, because the mean of its divisors is an integer number (2838075058000).

Almost surely, 2^{64532004536660} is an apocalyptic number.

It is an amenable number.

64532004536660 is an abundant number, since it is smaller than the sum of its proper divisors (71695598247340).

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

64532004536660 is a wasteful number, since it uses less digits than its factorization.

64532004536660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7652016 (or 7652014 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 50.

The spelling of 64532004536660 in words is "sixty-four trillion, five hundred thirty-two billion, four million, five hundred thirty-six thousand, six hundred sixty".