66152166956 has 24 divisors (see below), whose sum is σ = 120907943520. Its totient is φ = 31609619712.

The previous prime is 66152166937. The next prime is 66152166961. The reversal of 66152166956 is 65966125166.

It is a super-2 number, since 2×66152166956² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66152166898 and 66152166907.

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 7 ways as a sum of consecutive naturals, for example, 219101 + ... + 424628.

It is an arithmetic number, because the mean of its divisors is an integer number (5037830980).

Almost surely, 2^66152166956 is an apocalyptic number.

It is an amenable number.

66152166956 is a deficient number, since it is larger than the sum of its proper divisors (54755776564).

66152166956 is a wasteful number, since it uses less digits than its factorization.

66152166956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644873 (or 644871 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 53.

The spelling of 66152166956 in words is "sixty-six billion, one hundred fifty-two million, one hundred sixty-six thousand, nine hundred fifty-six".