158021492860 has 96 divisors (see below), whose sum is σ = 414251324928. Its totient is φ = 49191271680.

The previous prime is 158021492851. The next prime is 158021492879. The reversal of 158021492860 is 68294120851.

It is a self number, because there is not a number n which added to its sum of digits gives 158021492860.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1163007 + ... + 1291753.

It is an arithmetic number, because the mean of its divisors is an integer number (4315117968).

Almost surely, 2^158021492860 is an apocalyptic number.

158021492860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158021492860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207125662464).

158021492860 is an abundant number, since it is smaller than the sum of its proper divisors (256229832068).

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

158021492860 is a wasteful number, since it uses less digits than its factorization.

158021492860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129571 (or 129569 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 158021492860 in words is "one hundred fifty-eight billion, twenty-one million, four hundred ninety-two thousand, eight hundred sixty".