149679995522 has 6 divisors (see below), whose sum is σ = 224520813993. Its totient is φ = 74839724192.

The previous prime is 149679995497. The next prime is 149679995551. The reversal of 149679995522 is 225599976941.

It can be written as a sum of positive squares in 2 ways, for example, as 99875592961 + 49804402561 = 316031^2 + 223169^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=273569.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 410354 + ... + 683922.

Almost surely, 2^149679995522 is an apocalyptic number.

149679995522 is a deficient number, since it is larger than the sum of its proper divisors (74840818471).

149679995522 is an frugal number, since it uses more digits than its factorization.

149679995522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547140 (or 273571 counting only the distinct ones).

The product of its digits is 110224800, while the sum is 68.

The spelling of 149679995522 in words is "one hundred forty-nine billion, six hundred seventy-nine million, nine hundred ninety-five thousand, five hundred twenty-two".