158438522444 has 12 divisors (see below), whose sum is σ = 277899006000. Its totient is φ = 79038806448.

The previous prime is 158438522401. The next prime is 158438522477. The reversal of 158438522444 is 444225834851.

It is a junction number, because it is equal to n+sod(n) for n = 158438522392 and 158438522401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45111719 + ... + 45115230.

It is an arithmetic number, because the mean of its divisors is an integer number (23158250500).

Almost surely, 2^158438522444 is an apocalyptic number.

It is an amenable number.

158438522444 is a deficient number, since it is larger than the sum of its proper divisors (119460483556).

158438522444 is a wasteful number, since it uses less digits than its factorization.

158438522444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90227392 (or 90227390 counting only the distinct ones).

The product of its digits is 4915200, while the sum is 50.

The spelling of 158438522444 in words is "one hundred fifty-eight billion, four hundred thirty-eight million, five hundred twenty-two thousand, four hundred forty-four".