12171116370 has 48 divisors (see below), whose sum is σ = 33979773888. Its totient is φ = 2781969120.

The previous prime is 12171116327. The next prime is 12171116389. The reversal of 12171116370 is 7361117121.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4138366 + ... + 4141305.

It is an arithmetic number, because the mean of its divisors is an integer number (707911956).

Almost surely, 2^12171116370 is an apocalyptic number.

12171116370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12171116370 is an abundant number, since it is smaller than the sum of its proper divisors (21808657518).

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

12171116370 is a wasteful number, since it uses less digits than its factorization.

12171116370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8279695 (or 8279688 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 30.

The spelling of 12171116370 in words is "twelve billion, one hundred seventy-one million, one hundred sixteen thousand, three hundred seventy".