118193664656947 has 32 divisors (see below), whose sum is σ = 130767134883840. Its totient is φ = 105935238948000.

The previous prime is 118193664656941. The next prime is 118193664656953. The reversal of 118193664656947 is 749656466391811.

It is an interprime number because it is at equal distance from previous prime (118193664656941) and next prime (118193664656953).

It is not a de Polignac number, because 118193664656947 - 2²³ = 118193656268339 is a prime.

It is a super-3 number, since 3×118193664656947³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118193664656941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232837422 + ... + 233344492.

It is an arithmetic number, because the mean of its divisors is an integer number (4086472965120).

Almost surely, 2^{118193664656947} is an apocalyptic number.

118193664656947 is a deficient number, since it is larger than the sum of its proper divisors (12573470226893).

118193664656947 is a wasteful number, since it uses less digits than its factorization.

118193664656947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508095.

The product of its digits is 1410877440, while the sum is 76.

The spelling of 118193664656947 in words is "one hundred eighteen trillion, one hundred ninety-three billion, six hundred sixty-four million, six hundred fifty-six thousand, nine hundred forty-seven".