12156492672 has 192 divisors, whose sum is σ = 36082846800. Its totient is φ = 3925573632.

The previous prime is 12156492659. The next prime is 12156492721. The reversal of 12156492672 is 27629465121.

12156492672 is a `hidden beast` number, since 1 + 2 + 156 + 492 + 6 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 13085104 + ... + 13086032.

Almost surely, 2^12156492672 is an apocalyptic number.

12156492672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12156492672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18041423400).

12156492672 is an abundant number, since it is smaller than the sum of its proper divisors (23926354128).

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

12156492672 is a wasteful number, since it uses less digits than its factorization.

12156492672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293 (or 1278 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The spelling of 12156492672 in words is "twelve billion, one hundred fifty-six million, four hundred ninety-two thousand, six hundred seventy-two".