165136650 has 48 divisors (see below), whose sum is σ = 468047424. Its totient is φ = 37745280.

The previous prime is 165136633. The next prime is 165136651. The reversal of 165136650 is 56631561.

165136650 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×165136650² = 54540226346445000, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165136651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77587 + ... + 79686.

It is an arithmetic number, because the mean of its divisors is an integer number (9750988).

Almost surely, 2^165136650 is an apocalyptic number.

165136650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165136650 is an abundant number, since it is smaller than the sum of its proper divisors (302910774).

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

165136650 is a wasteful number, since it uses less digits than its factorization.

165136650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157295 (or 157290 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 165136650 is about 12850.5505718627. The cubic root of 165136650 is about 548.6320273652.

The spelling of 165136650 in words is "one hundred sixty-five million, one hundred thirty-six thousand, six hundred fifty".