65342651166 has 24 divisors (see below), whose sum is σ = 152466186600. Its totient is φ = 20105431056.

The previous prime is 65342651149. The next prime is 65342651261. The reversal of 65342651166 is 66115624356.

65342651166 is a `hidden beast` number, since 6 + 53 + 4 + 26 + 511 + 66 = 666.

It is a super-2 number, since 2×65342651166² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 139620816 + ... + 139621283.

It is an arithmetic number, because the mean of its divisors is an integer number (6352757775).

Almost surely, 2^65342651166 is an apocalyptic number.

65342651166 is an abundant number, since it is smaller than the sum of its proper divisors (87123535434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65342651166 is a wasteful number, since it uses less digits than its factorization.

65342651166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279242120 (or 279242117 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The spelling of 65342651166 in words is "sixty-five billion, three hundred forty-two million, six hundred fifty-one thousand, one hundred sixty-six".