12153185808 has 40 divisors (see below), whose sum is σ = 31404531648. Its totient is φ = 4049926272.

The previous prime is 12153185791. The next prime is 12153185887. The reversal of 12153185808 is 80858135121.

It is a super-2 number, since 2×12153185808² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12153185808.

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, 147210 + ... + 214422.

Almost surely, 2^12153185808 is an apocalyptic number.

It is an amenable number.

12153185808 is an abundant number, since it is smaller than the sum of its proper divisors (19251345840).

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

12153185808 is a wasteful number, since it uses less digits than its factorization.

12153185808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70991 (or 70985 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 42.

The spelling of 12153185808 in words is "twelve billion, one hundred fifty-three million, one hundred eighty-five thousand, eight hundred eight".