64994613776 has 20 divisors (see below), whose sum is σ = 126586374144. Its totient is φ = 32327162400.

The previous prime is 64994613769. The next prime is 64994613823. The reversal of 64994613776 is 67731649946.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10630880 + ... + 10636991.

Almost surely, 2^64994613776 is an apocalyptic number.

It is an amenable number.

64994613776 is a deficient number, since it is larger than the sum of its proper divisors (61591760368).

64994613776 is a wasteful number, since it uses less digits than its factorization.

64994613776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21268070 (or 21268064 counting only the distinct ones).

The product of its digits is 41150592, while the sum is 62.

The spelling of 64994613776 in words is "sixty-four billion, nine hundred ninety-four million, six hundred thirteen thousand, seven hundred seventy-six".