15253644640136 has 32 divisors (see below), whose sum is σ = 32789493023040. Its totient is φ = 6516653944128.

The previous prime is 15253644640121. The next prime is 15253644640183. The reversal of 15253644640136 is 63104644635251.

It is a happy 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, 429613970 + ... + 429649473.

It is an arithmetic number, because the mean of its divisors is an integer number (1024671656970).

Almost surely, 2^{15253644640136} is an apocalyptic number.

It is an amenable number.

15253644640136 is an abundant number, since it is smaller than the sum of its proper divisors (17535848382904).

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

15253644640136 is a wasteful number, since it uses less digits than its factorization.

15253644640136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859263773 (or 859263769 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 50.

The spelling of 15253644640136 in words is "fifteen trillion, two hundred fifty-three billion, six hundred forty-four million, six hundred forty thousand, one hundred thirty-six".