150506561561 has 8 divisors (see below), whose sum is σ = 152335330560. Its totient is φ = 148678160272.

The previous prime is 150506561537. The next prime is 150506561603. The reversal of 150506561561 is 165165605051.

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 150506561561 - 2³⁴ = 133326692377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150506561521) 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, 781775 + ... + 955083.

It is an arithmetic number, because the mean of its divisors is an integer number (19041916320).

Almost surely, 2^150506561561 is an apocalyptic number.

It is an amenable number.

150506561561 is a deficient number, since it is larger than the sum of its proper divisors (1828768999).

150506561561 is a wasteful number, since it uses less digits than its factorization.

150506561561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183855.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 150506561561 in words is "one hundred fifty billion, five hundred six million, five hundred sixty-one thousand, five hundred sixty-one".