12615701052 has 12 divisors (see below), whose sum is σ = 29436635816. Its totient is φ = 4205233680.

The previous prime is 12615701051. The next prime is 12615701099. The reversal of 12615701052 is 25010751621.

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

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12615701051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525654199 + ... + 525654222.

Almost surely, 2^12615701052 is an apocalyptic number.

12615701052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12615701052 is an abundant number, since it is smaller than the sum of its proper divisors (16820934764).

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

12615701052 is a wasteful number, since it uses less digits than its factorization.

12615701052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051308428 (or 1051308426 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 30.

The spelling of 12615701052 in words is "twelve billion, six hundred fifteen million, seven hundred one thousand, fifty-two".