158210858078 has 64 divisors (see below), whose sum is σ = 301116681600. Its totient is φ = 61943325696.

The previous prime is 158210858063. The next prime is 158210858081. The reversal of 158210858078 is 870858012851.

It is a super-2 number, since 2×158210858078² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

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, 773600 + ... + 956492.

It is an arithmetic number, because the mean of its divisors is an integer number (4704948150).

Almost surely, 2^158210858078 is an apocalyptic number.

158210858078 is a deficient number, since it is larger than the sum of its proper divisors (142905823522).

158210858078 is a wasteful number, since it uses less digits than its factorization.

158210858078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183026 (or 183012 counting only the distinct ones).

The product of its (nonzero) digits is 1433600, while the sum is 53.

The spelling of 158210858078 in words is "one hundred fifty-eight billion, two hundred ten million, eight hundred fifty-eight thousand, seventy-eight".