149318955577 has 8 divisors (see below), whose sum is σ = 162896464800. Its totient is φ = 135741956160.

The previous prime is 149318955559. The next prime is 149318955623. The reversal of 149318955577 is 775559813941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149318955577 - 2⁷ = 149318955449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149318955547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 744174 + ... + 923272.

It is an arithmetic number, because the mean of its divisors is an integer number (20362058100).

Almost surely, 2^149318955577 is an apocalyptic number.

It is an amenable number.

149318955577 is a deficient number, since it is larger than the sum of its proper divisors (13577509223).

149318955577 is a wasteful number, since it uses less digits than its factorization.

149318955577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254903.

The product of its digits is 47628000, while the sum is 64.

The spelling of 149318955577 in words is "one hundred forty-nine billion, three hundred eighteen million, nine hundred fifty-five thousand, five hundred seventy-seven".