15456612012 has 12 divisors (see below), whose sum is σ = 36065428056. Its totient is φ = 5152204000.

The previous prime is 15456611993. The next prime is 15456612013. The reversal of 15456612012 is 21021665451.

15456612012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (15456612013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644025489 + ... + 644025512.

It is an arithmetic number, because the mean of its divisors is an integer number (3005452338).

Almost surely, 2^15456612012 is an apocalyptic number.

15456612012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15456612012 is an abundant number, since it is smaller than the sum of its proper divisors (20608816044).

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

15456612012 is a wasteful number, since it uses less digits than its factorization.

15456612012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288051008 (or 1288051006 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 15456612012 in words is "fifteen billion, four hundred fifty-six million, six hundred twelve thousand, twelve".