12185116870 has 16 divisors (see below), whose sum is σ = 22886828640. Its totient is φ = 4662131584.

The previous prime is 12185116837. The next prime is 12185116921. The reversal of 12185116870 is 7861158121.

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, 26489155 + ... + 26489614.

It is an arithmetic number, because the mean of its divisors is an integer number (1430426790).

Almost surely, 2^12185116870 is an apocalyptic number.

12185116870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12185116870 is a deficient number, since it is larger than the sum of its proper divisors (10701711770).

12185116870 is a wasteful number, since it uses less digits than its factorization.

12185116870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52978799.

The product of its (nonzero) digits is 26880, while the sum is 40.

The spelling of 12185116870 in words is "twelve billion, one hundred eighty-five million, one hundred sixteen thousand, eight hundred seventy".