66100050053564 has 24 divisors (see below), whose sum is σ = 115852626847776. Its totient is φ = 32999301720000.

The previous prime is 66100050053563. The next prime is 66100050053581. The reversal of 66100050053564 is 46535005000166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66100050053563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132561914 + ... + 133059614.

It is an arithmetic number, because the mean of its divisors is an integer number (4827192785324).

Almost surely, 2^{66100050053564} is an apocalyptic number.

It is an amenable number.

66100050053564 is a deficient number, since it is larger than the sum of its proper divisors (49752576794212).

66100050053564 is a wasteful number, since it uses less digits than its factorization.

66100050053564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548597 (or 548595 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 66100050053564 in words is "sixty-six trillion, one hundred billion, fifty million, fifty-three thousand, five hundred sixty-four".