149655922418 has 18 divisors (see below), whose sum is σ = 238480399533. Its totient is φ = 70421939680.

The previous prime is 149655922399. The next prime is 149655922433. The reversal of 149655922418 is 814229556941.

It can be written as a sum of positive squares in 2 ways, for example, as 136968828649 + 12687093769 = 370093^2 + 112637^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=273547.

It is a super-2 number, since 2×149655922418² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9292553 + ... + 9308643.

Almost surely, 2^149655922418 is an apocalyptic number.

149655922418 is a deficient number, since it is larger than the sum of its proper divisors (88824477115).

149655922418 is an frugal number, since it uses more digits than its factorization.

149655922418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32218 (or 16110 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 56.

The spelling of 149655922418 in words is "one hundred forty-nine billion, six hundred fifty-five million, nine hundred twenty-two thousand, four hundred eighteen".