116666659878 has 32 divisors (see below), whose sum is σ = 233713946592. Its totient is φ = 38825491200.

The previous prime is 116666659867. The next prime is 116666659939. The reversal of 116666659878 is 878956666611.

It is a super-2 number, since 2×116666659878² (a number of 23 digits) contains 22 as substring.

It is a congruent 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, 21873700 + ... + 21879032.

It is an arithmetic number, because the mean of its divisors is an integer number (7303560831).

Almost surely, 2^116666659878 is an apocalyptic number.

116666659878 is an abundant number, since it is smaller than the sum of its proper divisors (117047286714).

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

116666659878 is a wasteful number, since it uses less digits than its factorization.

116666659878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10600.

The product of its digits is 156764160, while the sum is 69.

The spelling of 116666659878 in words is "one hundred sixteen billion, six hundred sixty-six million, six hundred fifty-nine thousand, eight hundred seventy-eight".