64590651536 has 40 divisors (see below), whose sum is σ = 126994252800. Its totient is φ = 31819656960.

The previous prime is 64590651529. The next prime is 64590651583. The reversal of 64590651536 is 63515609546.

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, 552116 + ... + 658796.

It is an arithmetic number, because the mean of its divisors is an integer number (3174856320).

Almost surely, 2^64590651536 is an apocalyptic number.

It is an amenable number.

64590651536 is a deficient number, since it is larger than the sum of its proper divisors (62403601264).

64590651536 is a wasteful number, since it uses less digits than its factorization.

64590651536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107247 (or 107241 counting only the distinct ones).

The product of its (nonzero) digits is 2916000, while the sum is 50.

The spelling of 64590651536 in words is "sixty-four billion, five hundred ninety million, six hundred fifty-one thousand, five hundred thirty-six".