66160920022 has 4 divisors (see below), whose sum is σ = 99241380036. Its totient is φ = 33080460010.

The previous prime is 66160919963. The next prime is 66160920071. The reversal of 66160920022 is 22002906166.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 66160920022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16540230004 + ... + 16540230007.

It is an arithmetic number, because the mean of its divisors is an integer number (24810345009).

Almost surely, 2^66160920022 is an apocalyptic number.

66160920022 is a deficient number, since it is larger than the sum of its proper divisors (33080460014).

66160920022 is a wasteful number, since it uses less digits than its factorization.

66160920022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33080460013.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 66160920022 in words is "sixty-six billion, one hundred sixty million, nine hundred twenty thousand, twenty-two".