12155191468 has 48 divisors (see below), whose sum is σ = 24825908800. Its totient is φ = 5205295872.

The previous prime is 12155191441. The next prime is 12155191469. The reversal of 12155191468 is 86419155121.

It is not an unprimeable number, because it can be changed into a prime (12155191469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2320180 + ... + 2325412.

Almost surely, 2^12155191468 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12155191468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12412954400).

12155191468 is an abundant number, since it is smaller than the sum of its proper divisors (12670717332).

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

12155191468 is a wasteful number, since it uses less digits than its factorization.

12155191468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6951 (or 6935 counting only the distinct ones).

The product of its digits is 86400, while the sum is 43.

The spelling of 12155191468 in words is "twelve billion, one hundred fifty-five million, one hundred ninety-one thousand, four hundred sixty-eight".