165054906 has 12 divisors (see below), whose sum is σ = 357619002. Its totient is φ = 55018296.

The previous prime is 165054823. The next prime is 165054913. The reversal of 165054906 is 609450561.

165054906 is a `hidden beast` number, since 165 + 0 + 5 + 490 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 155226681 + 9828225 = 12459^2 + 3135^2 .

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, 4584841 + ... + 4584876.

Almost surely, 2^165054906 is an apocalyptic number.

165054906 is an abundant number, since it is smaller than the sum of its proper divisors (192564096).

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

165054906 is a wasteful number, since it uses less digits than its factorization.

165054906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9169725 (or 9169722 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 165054906 is about 12847.3696140494. The cubic root of 165054906 is about 548.5414866354.

The spelling of 165054906 in words is "one hundred sixty-five million, fifty-four thousand, nine hundred six".