158505868 has 6 divisors (see below), whose sum is σ = 277385276. Its totient is φ = 79252932.

The previous prime is 158505797. The next prime is 158505899. The reversal of 158505868 is 868505851.

158505868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×158505868² = 50248220380866848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19813230 + ... + 19813237.

Almost surely, 2^158505868 is an apocalyptic number.

It is an amenable number.

158505868 is a deficient number, since it is larger than the sum of its proper divisors (118879408).

158505868 is a wasteful number, since it uses less digits than its factorization.

158505868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39626471 (or 39626469 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 46.

The square root of 158505868 is about 12589.9113579088. The cubic root of 158505868 is about 541.1883614006.

The spelling of 158505868 in words is "one hundred fifty-eight million, five hundred five thousand, eight hundred sixty-eight".