158425787520 has 2560 divisors, whose sum is σ = 788245032960. Its totient is φ = 29262643200.

The previous prime is 158425787503. The next prime is 158425787557. The reversal of 158425787520 is 25787524851.

It is a happy number.

158425787520 is a `hidden beast` number, since 1 + 5 + 8 + 42 + 5 + 78 + 7 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 2231349085 + ... + 2231349155.

It is an arithmetic number, because the mean of its divisors is an integer number (307908216).

Almost surely, 2^158425787520 is an apocalyptic number.

158425787520 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 158425787520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394122516480).

158425787520 is an abundant number, since it is smaller than the sum of its proper divisors (629819245440).

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

158425787520 is a wasteful number, since it uses less digits than its factorization.

158425787520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 6272000, while the sum is 54.

The spelling of 158425787520 in words is "one hundred fifty-eight billion, four hundred twenty-five million, seven hundred eighty-seven thousand, five hundred twenty".