118164526081 has 12 divisors (see below), whose sum is σ = 137090892288. Its totient is φ = 99772153272.

The previous prime is 118164526057. The next prime is 118164526097. The reversal of 118164526081 is 180625461811.

It is not a de Polignac number, because 118164526081 - 2⁵ = 118164526049 is a prime.

It is a super-2 number, since 2×118164526081² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118164529081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1848801 + ... + 1911646.

It is an arithmetic number, because the mean of its divisors is an integer number (11424241024).

Almost surely, 2^118164526081 is an apocalyptic number.

It is an amenable number.

118164526081 is a deficient number, since it is larger than the sum of its proper divisors (18926366207).

118164526081 is an frugal number, since it uses more digits than its factorization.

118164526081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3760588 (or 3760521 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 43.

Adding to 118164526081 its reverse (180625461811), we get a palindrome (298789987892).

The spelling of 118164526081 in words is "one hundred eighteen billion, one hundred sixty-four million, five hundred twenty-six thousand, eighty-one".