150561565551 has 12 divisors (see below), whose sum is σ = 222535441128. Its totient is φ = 98040088944.

The previous prime is 150561565549. The next prime is 150561565559. The reversal of 150561565551 is 155565165051.

It is not a de Polignac number, because 150561565551 - 2¹ = 150561565549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 150561565497 and 150561565506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150561565559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194523600 + ... + 194524373.

It is an arithmetic number, because the mean of its divisors is an integer number (18544620094).

Almost surely, 2^150561565551 is an apocalyptic number.

150561565551 is a deficient number, since it is larger than the sum of its proper divisors (71973875577).

150561565551 is a wasteful number, since it uses less digits than its factorization.

150561565551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389048022 (or 389048019 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 45.

The spelling of 150561565551 in words is "one hundred fifty billion, five hundred sixty-one million, five hundred sixty-five thousand, five hundred fifty-one".