118037646385 has 16 divisors (see below), whose sum is σ = 145135407312. Its totient is φ = 92104422400.

The previous prime is 118037646373. The next prime is 118037646413. The reversal of 118037646385 is 583646730811.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 18428605504 + 99609040881 = 135752^2 + 315609^2 .

It is not a de Polignac number, because 118037646385 - 2¹¹ = 118037644337 is a prime.

It is a super-2 number, since 2×118037646385² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 796215 + ... + 932755.

It is an arithmetic number, because the mean of its divisors is an integer number (9070962957).

Almost surely, 2^118037646385 is an apocalyptic number.

It is an amenable number.

118037646385 is a deficient number, since it is larger than the sum of its proper divisors (27097760927).

118037646385 is a wasteful number, since it uses less digits than its factorization.

118037646385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140804.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 118037646385 in words is "one hundred eighteen billion, thirty-seven million, six hundred forty-six thousand, three hundred eighty-five".