158418668 has 6 divisors (see below), whose sum is σ = 277232676. Its totient is φ = 79209332.

The previous prime is 158418661. The next prime is 158418671. The reversal of 158418668 is 866814851.

158418668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (158418661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19802330 + ... + 19802337.

It is an arithmetic number, because the mean of its divisors is an integer number (46205446).

Almost surely, 2^158418668 is an apocalyptic number.

It is an amenable number.

158418668 is a deficient number, since it is larger than the sum of its proper divisors (118814008).

158418668 is a wasteful number, since it uses less digits than its factorization.

158418668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39604671 (or 39604669 counting only the distinct ones).

The product of its digits is 368640, while the sum is 47.

The square root of 158418668 is about 12586.4477911760. The cubic root of 158418668 is about 541.0891005503.

The spelling of 158418668 in words is "one hundred fifty-eight million, four hundred eighteen thousand, six hundred sixty-eight".