150531620561 has 24 divisors (see below), whose sum is σ = 177656441760. Its totient is φ = 127163034432.

The previous prime is 150531620543. The next prime is 150531620611. The reversal of 150531620561 is 165026135051.

It is a de Polignac number, because none of the positive numbers 2^k-150531620561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (150531670561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 852446 + ... + 1013768.

It is an arithmetic number, because the mean of its divisors is an integer number (7402351740).

Almost surely, 2^150531620561 is an apocalyptic number.

It is an amenable number.

150531620561 is a deficient number, since it is larger than the sum of its proper divisors (27124821199).

150531620561 is a wasteful number, since it uses less digits than its factorization.

150531620561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161613 (or 161606 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 150531620561 in words is "one hundred fifty billion, five hundred thirty-one million, six hundred twenty thousand, five hundred sixty-one".