158215516 has 12 divisors (see below), whose sum is σ = 277204032. Its totient is φ = 79014368.

The previous prime is 158215511. The next prime is 158215523. The reversal of 158215516 is 615512851.

158215516 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158215511) 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, 19465 + ... + 26368.

It is an arithmetic number, because the mean of its divisors is an integer number (23100336).

Almost surely, 2^158215516 is an apocalyptic number.

It is an amenable number.

158215516 is a deficient number, since it is larger than the sum of its proper divisors (118988516).

158215516 is a wasteful number, since it uses less digits than its factorization.

158215516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46700 (or 46698 counting only the distinct ones).

The product of its digits is 12000, while the sum is 34.

The square root of 158215516 is about 12578.3749347839. The cubic root of 158215516 is about 540.8577087253.

The spelling of 158215516 in words is "one hundred fifty-eight million, two hundred fifteen thousand, five hundred sixteen".