12533156502 has 16 divisors (see below), whose sum is σ = 25477236912. Its totient is φ = 4109231520.

The previous prime is 12533156497. The next prime is 12533156509. The reversal of 12533156502 is 20565133521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12533156509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17121433 + ... + 17122164.

It is an arithmetic number, because the mean of its divisors is an integer number (1592327307).

Almost surely, 2^12533156502 is an apocalyptic number.

12533156502 is an abundant number, since it is smaller than the sum of its proper divisors (12944080410).

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

12533156502 is a wasteful number, since it uses less digits than its factorization.

12533156502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34243663.

The product of its (nonzero) digits is 27000, while the sum is 33.

The spelling of 12533156502 in words is "twelve billion, five hundred thirty-three million, one hundred fifty-six thousand, five hundred two".