165099954 has 16 divisors (see below), whose sum is σ = 349623648. Its totient is φ = 51796032.

The previous prime is 165099947. The next prime is 165099959. The reversal of 165099954 is 459990561.

It is not an unprimeable number, because it can be changed into a prime (165099959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 809212 + ... + 809415.

It is an arithmetic number, because the mean of its divisors is an integer number (21851478).

Almost surely, 2^165099954 is an apocalyptic number.

165099954 is an abundant number, since it is smaller than the sum of its proper divisors (184523694).

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

165099954 is a wasteful number, since it uses less digits than its factorization.

165099954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618649.

The product of its (nonzero) digits is 437400, while the sum is 48.

The square root of 165099954 is about 12849.1226937873. The cubic root of 165099954 is about 548.5913860896.

The spelling of 165099954 in words is "one hundred sixty-five million, ninety-nine thousand, nine hundred fifty-four".