149423994916 has 27 divisors (see below), whose sum is σ = 304195578267. Its totient is φ = 64036535640.

The previous prime is 149423994911. The next prime is 149423994919. The reversal of 149423994916 is 619499324941.

The square root of 149423994916 is 386554.

It is a perfect power (a square), and thus also a powerful number.

It is not an unprimeable number, because it can be changed into a prime (149423994911) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5397951 + ... + 5425561.

Almost surely, 2^149423994916 is an apocalyptic number.

149423994916 is the 386554-th square number.

It is an amenable number.

149423994916 is an abundant number, since it is smaller than the sum of its proper divisors (154771583351).

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

149423994916 is an frugal number, since it uses more digits than its factorization.

149423994916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55240 (or 27620 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 61.

The spelling of 149423994916 in words is "one hundred forty-nine billion, four hundred twenty-three million, nine hundred ninety-four thousand, nine hundred sixteen".