158190217950 has 48 divisors (see below), whose sum is σ = 392400728496. Its totient is φ = 42174489600.

The previous prime is 158190217919. The next prime is 158190217973. The reversal of 158190217950 is 59712091851.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 158190217950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 556590 + ... + 791310.

It is an arithmetic number, because the mean of its divisors is an integer number (8175015177).

Almost surely, 2^158190217950 is an apocalyptic number.

158190217950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158190217950 is an abundant number, since it is smaller than the sum of its proper divisors (234210510546).

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

158190217950 is a wasteful number, since it uses less digits than its factorization.

158190217950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239229 (or 239224 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 48.

The spelling of 158190217950 in words is "one hundred fifty-eight billion, one hundred ninety million, two hundred seventeen thousand, nine hundred fifty".