158456668 has 12 divisors (see below), whose sum is σ = 280415520. Its totient is φ = 78337952.

The previous prime is 158456663. The next prime is 158456723. The reversal of 158456668 is 866654851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158456663) 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, 222196 + ... + 222907.

It is an arithmetic number, because the mean of its divisors is an integer number (23367960).

Almost surely, 2^158456668 is an apocalyptic number.

It is an amenable number.

158456668 is a deficient number, since it is larger than the sum of its proper divisors (121958852).

158456668 is a wasteful number, since it uses less digits than its factorization.

158456668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445196 (or 445194 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 49.

The square root of 158456668 is about 12587.9572608108. The cubic root of 158456668 is about 541.1323609022.

The spelling of 158456668 in words is "one hundred fifty-eight million, four hundred fifty-six thousand, six hundred sixty-eight".