165650454 has 16 divisors (see below), whose sum is σ = 368112240. Its totient is φ = 55216800.

The previous prime is 165650447. The next prime is 165650477. The reversal of 165650454 is 454056561.

165650454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×165650454² = 54880145820812232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1533747 + ... + 1533854.

It is an arithmetic number, because the mean of its divisors is an integer number (23007015).

Almost surely, 2^165650454 is an apocalyptic number.

165650454 is an abundant number, since it is smaller than the sum of its proper divisors (202461786).

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

165650454 is a wasteful number, since it uses less digits than its factorization.

165650454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3067612 (or 3067606 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 165650454 is about 12870.5265626547. The cubic root of 165650454 is about 549.2004404116.

The spelling of 165650454 in words is "one hundred sixty-five million, six hundred fifty thousand, four hundred fifty-four".