118656773634961 has 9 divisors (see below), whose sum is σ = 118919754717393. Its totient is φ = 118394372904720.

The previous prime is 118656773634947. The next prime is 118656773635013. The reversal of 118656773634961 is 169436377656811.

The square root of 118656773634961 is 10892969.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 66888173033361 + 51768600601600 = 8178519^2 + 7195040^2 .

It is not a de Polignac number, because 118656773634961 - 2⁹ = 118656773634449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118656773631961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5021646895 + ... + 5021670523.

Almost surely, 2^{118656773634961} is an apocalyptic number.

118656773634961 is the 10892969-th square number.

118656773634961 is the 5446485-th centered octagonal number.

It is an amenable number.

118656773634961 is a deficient number, since it is larger than the sum of its proper divisors (262981082432).

118656773634961 is an frugal number, since it uses more digits than its factorization.

118656773634961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48180 (or 24090 counting only the distinct ones).

The product of its digits is 823011840, while the sum is 73.

The spelling of 118656773634961 in words is "one hundred eighteen trillion, six hundred fifty-six billion, seven hundred seventy-three million, six hundred thirty-four thousand, nine hundred sixty-one".