149571745644 has 48 divisors (see below), whose sum is σ = 362970406400. Its totient is φ = 47895696576.

The previous prime is 149571745493. The next prime is 149571745663. The reversal of 149571745644 is 446547175941.

It is a happy number.

149571745644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 2097034 + ... + 2167185.

Almost surely, 2^149571745644 is an apocalyptic number.

It is an amenable number.

149571745644 is an abundant number, since it is smaller than the sum of its proper divisors (213398660756).

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

149571745644 is a wasteful number, since it uses less digits than its factorization.

149571745644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4264342 (or 4264340 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 57.

The spelling of 149571745644 in words is "one hundred forty-nine billion, five hundred seventy-one million, seven hundred forty-five thousand, six hundred forty-four".