64936168130 has 16 divisors (see below), whose sum is σ = 116912817720. Its totient is φ = 25968308352.

The previous prime is 64936168109. The next prime is 64936168147. The reversal of 64936168130 is 3186163946.

It can be written as a sum of positive squares in 4 ways, for example, as 64378405441 + 557762689 = 253729^2 + 23617^2 .

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, 725459 + ... + 810038.

Almost surely, 2^64936168130 is an apocalyptic number.

64936168130 is a deficient number, since it is larger than the sum of its proper divisors (51976649590).

64936168130 is a wasteful number, since it uses less digits than its factorization.

64936168130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539733.

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 64936168130 in words is "sixty-four billion, nine hundred thirty-six million, one hundred sixty-eight thousand, one hundred thirty".