12406651632 has 40 divisors (see below), whose sum is σ = 35611686480. Its totient is φ = 4135550400.

The previous prime is 12406651627. The next prime is 12406651643. The reversal of 12406651632 is 23615660421.

12406651632 is a `hidden beast` number, since 12 + 4 + 0 + 6 + 6 + 5 + 1 + 632 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 14359119 + ... + 14359982.

It is an arithmetic number, because the mean of its divisors is an integer number (890292162).

Almost surely, 2^12406651632 is an apocalyptic number.

12406651632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12406651632 is an abundant number, since it is smaller than the sum of its proper divisors (23205034848).

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

12406651632 is a wasteful number, since it uses less digits than its factorization.

12406651632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28719118 (or 28719106 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 12406651632 in words is "twelve billion, four hundred six million, six hundred fifty-one thousand, six hundred thirty-two".