66013642051364 has 24 divisors (see below), whose sum is σ = 132868222226880. Its totient is φ = 28111359852576.

The previous prime is 66013642051349. The next prime is 66013642051369. The reversal of 66013642051364 is 46315024631066.

It is a super-2 number, since 2×66013642051364² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66013642051369) 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, 7508371634 + ... + 7508380425.

It is an arithmetic number, because the mean of its divisors is an integer number (5536175926120).

Almost surely, 2^{66013642051364} is an apocalyptic number.

It is an amenable number.

66013642051364 is an abundant number, since it is smaller than the sum of its proper divisors (66854580175516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66013642051364 is a wasteful number, since it uses less digits than its factorization.

66013642051364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15016752227 (or 15016752225 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 66013642051364 in words is "sixty-six trillion, thirteen billion, six hundred forty-two million, fifty-one thousand, three hundred sixty-four".