158251707550 has 12 divisors (see below), whose sum is σ = 294348176136. Its totient is φ = 63300683000.

The previous prime is 158251707517. The next prime is 158251707563. The reversal of 158251707550 is 55707152851.

It is a self number, because there is not a number n which added to its sum of digits gives 158251707550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1582517026 + ... + 1582517125.

It is an arithmetic number, because the mean of its divisors is an integer number (24529014678).

Almost surely, 2^158251707550 is an apocalyptic number.

158251707550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158251707550 is a deficient number, since it is larger than the sum of its proper divisors (136096468586).

158251707550 is a wasteful number, since it uses less digits than its factorization.

158251707550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3165034163 (or 3165034158 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 46.

The spelling of 158251707550 in words is "one hundred fifty-eight billion, two hundred fifty-one million, seven hundred seven thousand, five hundred fifty".