158399443674 has 32 divisors (see below), whose sum is σ = 352885458240. Its totient is φ = 52666810416.

The previous prime is 158399443633. The next prime is 158399443687. The reversal of 158399443674 is 476344993851.

158399443674 is a `hidden beast` number, since 1 + 583 + 9 + 9 + 4 + 43 + 6 + 7 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3672924 + ... + 3715799.

It is an arithmetic number, because the mean of its divisors is an integer number (11027670570).

Almost surely, 2^158399443674 is an apocalyptic number.

158399443674 is an abundant number, since it is smaller than the sum of its proper divisors (194486014566).

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

158399443674 is a wasteful number, since it uses less digits than its factorization.

158399443674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7389131 (or 7389125 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 158399443674 in words is "one hundred fifty-eight billion, three hundred ninety-nine million, four hundred forty-three thousand, six hundred seventy-four".