66152182657 has 16 divisors (see below), whose sum is σ = 72518100480. Its totient is φ = 59845161600.

The previous prime is 66152182643. The next prime is 66152182661. The reversal of 66152182657 is 75628125166.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66152182657 is a prime.

It is a super-2 number, since 2×66152182657² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66152182657.

It is not an unprimeable number, because it can be changed into a prime (66152182627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10449069 + ... + 10455397.

It is an arithmetic number, because the mean of its divisors is an integer number (4532381280).

Almost surely, 2^66152182657 is an apocalyptic number.

It is an amenable number.

66152182657 is a deficient number, since it is larger than the sum of its proper divisors (6365917823).

66152182657 is a wasteful number, since it uses less digits than its factorization.

66152182657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10824.

The product of its digits is 1209600, while the sum is 49.

The spelling of 66152182657 in words is "sixty-six billion, one hundred fifty-two million, one hundred eighty-two thousand, six hundred fifty-seven".