66522118708 has 48 divisors (see below), whose sum is σ = 118768446720. Its totient is φ = 32596143104.

The previous prime is 66522118661. The next prime is 66522118721. The reversal of 66522118708 is 80781122566.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34772760 + ... + 34774672.

It is an arithmetic number, because the mean of its divisors is an integer number (2474342640).

Almost surely, 2^66522118708 is an apocalyptic number.

It is an amenable number.

66522118708 is a deficient number, since it is larger than the sum of its proper divisors (52246328012).

66522118708 is a wasteful number, since it uses less digits than its factorization.

66522118708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856 (or 2854 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

It can be divided in two parts, 665221 and 18708, that added together give a square (683929 = 827²).

The spelling of 66522118708 in words is "sixty-six billion, five hundred twenty-two million, one hundred eighteen thousand, seven hundred eight".