116821811870 has 32 divisors (see below), whose sum is σ = 213775263936. Its totient is φ = 45952185600.

The previous prime is 116821811867. The next prime is 116821811891. The reversal of 116821811870 is 78118128611.

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, 2992175 + ... + 3030965.

It is an arithmetic number, because the mean of its divisors is an integer number (6680476998).

Almost surely, 2^116821811870 is an apocalyptic number.

116821811870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

116821811870 is a deficient number, since it is larger than the sum of its proper divisors (96953452066).

116821811870 is a wasteful number, since it uses less digits than its factorization.

116821811870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43796.

The product of its (nonzero) digits is 43008, while the sum is 44.

The spelling of 116821811870 in words is "one hundred sixteen billion, eight hundred twenty-one million, eight hundred eleven thousand, eight hundred seventy".