158121239124 has 48 divisors (see below), whose sum is σ = 371806270976. Its totient is φ = 52299756000.

The previous prime is 158121239093. The next prime is 158121239141. The reversal of 158121239124 is 421932121851.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1595379 + ... + 1691589.

Almost surely, 2^158121239124 is an apocalyptic number.

It is an amenable number.

158121239124 is an abundant number, since it is smaller than the sum of its proper divisors (213685031852).

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

158121239124 is a wasteful number, since it uses less digits than its factorization.

158121239124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97276 (or 97274 counting only the distinct ones).

The product of its digits is 34560, while the sum is 39.

The spelling of 158121239124 in words is "one hundred fifty-eight billion, one hundred twenty-one million, two hundred thirty-nine thousand, one hundred twenty-four".