15135644352 has 56 divisors (see below), whose sum is σ = 41338227712. Its totient is φ = 4882464000.

The previous prime is 15135644341. The next prime is 15135644371. The reversal of 15135644352 is 25344653151.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 15135644352.

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, 1265524 + ... + 1277427.

Almost surely, 2^15135644352 is an apocalyptic number.

15135644352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15135644352 is an abundant number, since it is smaller than the sum of its proper divisors (26202583360).

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

15135644352 is a wasteful number, since it uses less digits than its factorization.

15135644352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542997 (or 2542987 counting only the distinct ones).

The product of its digits is 216000, while the sum is 39.

The spelling of 15135644352 in words is "fifteen billion, one hundred thirty-five million, six hundred forty-four thousand, three hundred fifty-two".