6164772960861 has 12 divisors (see below), whose sum is σ = 8909326900188. Its totient is φ = 4107700250304.

The previous prime is 6164772960859. The next prime is 6164772960971. The reversal of 6164772960861 is 1680692774616.

It is a happy number.

6164772960861 is a `hidden beast` number, since 6 + 1 + 6 + 477 + 29 + 60 + 86 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5078685916836 + 1086087044025 = 2253594^2 + 1042155^2 .

It is not a de Polignac number, because 6164772960861 - 2¹ = 6164772960859 is a prime.

It is a super-2 number, since 2×6164772960861² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6164772960361) by changing a digit.

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, 179014350 + ... + 179048783.

It is an arithmetic number, because the mean of its divisors is an integer number (742443908349).

Almost surely, 2^{6164772960861} is an apocalyptic number.

It is an amenable number.

6164772960861 is a deficient number, since it is larger than the sum of its proper divisors (2744553939327).

6164772960861 is a wasteful number, since it uses less digits than its factorization.

6164772960861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358065052 (or 358065049 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 6164772960861 in words is "six trillion, one hundred sixty-four billion, seven hundred seventy-two million, nine hundred sixty thousand, eight hundred sixty-one".