117278798291766 has 24 divisors (see below), whose sum is σ = 260013459780360. Its totient is φ = 38183794792416.

The previous prime is 117278798291719. The next prime is 117278798291771. The reversal of 117278798291766 is 667192897872711.

117278798291766 is a `hidden beast` number, since 1 + 172 + 7 + 8 + 7 + 98 + 291 + 76 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75761496831 + ... + 75761498378.

It is an arithmetic number, because the mean of its divisors is an integer number (10833894157515).

Almost surely, 2^{117278798291766} is an apocalyptic number.

117278798291766 is an abundant number, since it is smaller than the sum of its proper divisors (142734661488594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117278798291766 is a wasteful number, since it uses less digits than its factorization.

117278798291766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151522995260 (or 151522995257 counting only the distinct ones).

The product of its digits is 1792336896, while the sum is 81.

The spelling of 117278798291766 in words is "one hundred seventeen trillion, two hundred seventy-eight billion, seven hundred ninety-eight million, two hundred ninety-one thousand, seven hundred sixty-six".