165527505650 has 24 divisors (see below), whose sum is σ = 331564328004. Its totient is φ = 61117848000.

The previous prime is 165527505629. The next prime is 165527505659. The reversal of 165527505650 is 56505725561.

It can be written as a sum of positive squares in 6 ways, for example, as 48165764089 + 117361741561 = 219467^2 + 342581^2 .

It is a junction number, because it is equal to n+sod(n) for n = 165527505595 and 165527505604.

It is not an unprimeable number, because it can be changed into a prime (165527505659) 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, 127328201 + ... + 127329500.

Almost surely, 2^165527505650 is an apocalyptic number.

165527505650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165527505650 is an abundant number, since it is smaller than the sum of its proper divisors (166036822354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165527505650 is a wasteful number, since it uses less digits than its factorization.

165527505650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254657726 (or 254657721 counting only the distinct ones).

The product of its (nonzero) digits is 1575000, while the sum is 47.

The spelling of 165527505650 in words is "one hundred sixty-five billion, five hundred twenty-seven million, five hundred five thousand, six hundred fifty".