15212243156 has 36 divisors (see below), whose sum is σ = 29672797056. Its totient is φ = 6767492400.

The previous prime is 15212243147. The next prime is 15212243183. The reversal of 15212243156 is 65134221251.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18941 + ... + 175451.

Almost surely, 2^15212243156 is an apocalyptic number.

It is an amenable number.

15212243156 is a deficient number, since it is larger than the sum of its proper divisors (14460553900).

15212243156 is a wasteful number, since it uses less digits than its factorization.

15212243156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156620 (or 156571 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The spelling of 15212243156 in words is "fifteen billion, two hundred twelve million, two hundred forty-three thousand, one hundred fifty-six".