66920116652 has 48 divisors (see below), whose sum is σ = 118495415808. Its totient is φ = 33067632960.

The previous prime is 66920116621. The next prime is 66920116691. The reversal of 66920116652 is 25661102966.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120143558 + ... + 120144114.

It is an arithmetic number, because the mean of its divisors is an integer number (2468654496).

Almost surely, 2^66920116652 is an apocalyptic number.

It is an amenable number.

66920116652 is a deficient number, since it is larger than the sum of its proper divisors (51575299156).

66920116652 is a wasteful number, since it uses less digits than its factorization.

66920116652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526 (or 1524 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 66920116652 in words is "sixty-six billion, nine hundred twenty million, one hundred sixteen thousand, six hundred fifty-two".