150185977922 has 18 divisors (see below), whose sum is σ = 227912653593. Its totient is φ = 74225132784.

The previous prime is 150185977901. The next prime is 150185977927. The reversal of 150185977922 is 229779581051.

It can be written as a sum of positive squares in 2 ways, for example, as 134249692801 + 15936285121 = 366401^2 + 126239^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=274031.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150185977927) 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, 48775979 + ... + 48779057.

Almost surely, 2^150185977922 is an apocalyptic number.

150185977922 is a deficient number, since it is larger than the sum of its proper divisors (77726675671).

150185977922 is an frugal number, since it uses more digits than its factorization.

150185977922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6338 (or 3170 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 56.

The spelling of 150185977922 in words is "one hundred fifty billion, one hundred eighty-five million, nine hundred seventy-seven thousand, nine hundred twenty-two".