165022450 has 12 divisors (see below), whose sum is σ = 306941850. Its totient is φ = 66008960.

The previous prime is 165022439. The next prime is 165022471. The reversal of 165022450 is 54220561.

165022450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 109683729 + 55338721 = 10473^2 + 7439^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1650175 + ... + 1650274.

Almost surely, 2^165022450 is an apocalyptic number.

165022450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165022450 is a deficient number, since it is larger than the sum of its proper divisors (141919400).

165022450 is a wasteful number, since it uses less digits than its factorization.

165022450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300461 (or 3300456 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 165022450 is about 12846.1064140073. The cubic root of 165022450 is about 548.5055296519.

The spelling of 165022450 in words is "one hundred sixty-five million, twenty-two thousand, four hundred fifty".