12152111456 has 24 divisors (see below), whose sum is σ = 24964665264. Its totient is φ = 5811879040.

The previous prime is 12152111437. The next prime is 12152111467. The reversal of 12152111456 is 65411125121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8254775 + ... + 8256246.

It is an arithmetic number, because the mean of its divisors is an integer number (1040194386).

Almost surely, 2^12152111456 is an apocalyptic number.

12152111456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12152111456 is an abundant number, since it is smaller than the sum of its proper divisors (12812553808).

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

12152111456 is a wasteful number, since it uses less digits than its factorization.

12152111456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16511054 (or 16511046 counting only the distinct ones).

The product of its digits is 2400, while the sum is 29.

Adding to 12152111456 its reverse (65411125121), we get a palindrome (77563236577).

The spelling of 12152111456 in words is "twelve billion, one hundred fifty-two million, one hundred eleven thousand, four hundred fifty-six".