66162859724 has 12 divisors (see below), whose sum is σ = 124691543424. Its totient is φ = 30536704464.

The previous prime is 66162859703. The next prime is 66162859747. The reversal of 66162859724 is 42795826166.

It is a self number, because there is not a number n which added to its sum of digits gives 66162859724.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636181292 + ... + 636181395.

It is an arithmetic number, because the mean of its divisors is an integer number (10390961952).

Almost surely, 2^66162859724 is an apocalyptic number.

It is an amenable number.

66162859724 is a deficient number, since it is larger than the sum of its proper divisors (58528683700).

66162859724 is a wasteful number, since it uses less digits than its factorization.

66162859724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272362704 (or 1272362702 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 56.

The spelling of 66162859724 in words is "sixty-six billion, one hundred sixty-two million, eight hundred fifty-nine thousand, seven hundred twenty-four".