64654426250636 has 12 divisors (see below), whose sum is σ = 113614728288600. Its totient is φ = 32193075311040.

The previous prime is 64654426250621. The next prime is 64654426250647. The reversal of 64654426250636 is 63605262445646.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33534452486 + ... + 33534454413.

It is an arithmetic number, because the mean of its divisors is an integer number (9467894024050).

Almost surely, 2^{64654426250636} is an apocalyptic number.

It is an amenable number.

64654426250636 is a deficient number, since it is larger than the sum of its proper divisors (48960302037964).

64654426250636 is a wasteful number, since it uses less digits than its factorization.

64654426250636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67068907144 (or 67068907142 counting only the distinct ones).

The product of its (nonzero) digits is 149299200, while the sum is 59.

The spelling of 64654426250636 in words is "sixty-four trillion, six hundred fifty-four billion, four hundred twenty-six million, two hundred fifty thousand, six hundred thirty-six".