116857621966 has 16 divisors (see below), whose sum is σ = 178191059904. Its totient is φ = 57465137664.

The previous prime is 116857621949. The next prime is 116857621987. The reversal of 116857621966 is 669126758611.

It is a self number, because there is not a number n which added to its sum of digits gives 116857621966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1082166 + ... + 1185241.

It is an arithmetic number, because the mean of its divisors is an integer number (11136941244).

Almost surely, 2^116857621966 is an apocalyptic number.

116857621966 is a deficient number, since it is larger than the sum of its proper divisors (61333437938).

116857621966 is a wasteful number, since it uses less digits than its factorization.

116857621966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267835.

The product of its digits is 6531840, while the sum is 58.

The spelling of 116857621966 in words is "one hundred sixteen billion, eight hundred fifty-seven million, six hundred twenty-one thousand, nine hundred sixty-six".