158869816 has 16 divisors (see below), whose sum is σ = 340435440. Its totient is φ = 68087040.

The previous prime is 158869787. The next prime is 158869817. The reversal of 158869816 is 618968851.

158869816 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158869817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1418425 + ... + 1418536.

It is an arithmetic number, because the mean of its divisors is an integer number (21277215).

Almost surely, 2^158869816 is an apocalyptic number.

It is an amenable number.

158869816 is an abundant number, since it is smaller than the sum of its proper divisors (181565624).

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

158869816 is a wasteful number, since it uses less digits than its factorization.

158869816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836974 (or 2836970 counting only the distinct ones).

The product of its digits is 829440, while the sum is 52.

The square root of 158869816 is about 12604.3570244579. The cubic root of 158869816 is about 541.6022553574.

The spelling of 158869816 in words is "one hundred fifty-eight million, eight hundred sixty-nine thousand, eight hundred sixteen".