15132553812 has 36 divisors (see below), whose sum is σ = 39668466656. Its totient is φ = 5044184280.

The previous prime is 15132553811. The next prime is 15132553823. The reversal of 15132553812 is 21835523151.

15132553812 is a `hidden beast` number, since 15 + 13 + 2 + 553 + 81 + 2 = 666.

15132553812 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 (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15132553811) 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 11 ways as a sum of consecutive naturals, for example, 7783264 + ... + 7785207.

Almost surely, 2^15132553812 is an apocalyptic number.

15132553812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15132553812 is an abundant number, since it is smaller than the sum of its proper divisors (24535912844).

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

15132553812 is a wasteful number, since it uses less digits than its factorization.

15132553812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15568490 (or 15568476 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The spelling of 15132553812 in words is "fifteen billion, one hundred thirty-two million, five hundred fifty-three thousand, eight hundred twelve".