165413633 has 16 divisors (see below), whose sum is σ = 210622464. Its totient is φ = 126148560.

The previous prime is 165413627. The next prime is 165413657. The reversal of 165413633 is 336314561.

It is a cyclic number.

It is not a de Polignac number, because 165413633 - 2¹⁴ = 165397249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 165413633.

It is not an unprimeable number, because it can be changed into a prime (165413603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19235 + ... + 26472.

It is an arithmetic number, because the mean of its divisors is an integer number (13163904).

Almost surely, 2^165413633 is an apocalyptic number.

It is an amenable number.

165413633 is a deficient number, since it is larger than the sum of its proper divisors (45208831).

165413633 is a wasteful number, since it uses less digits than its factorization.

165413633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45772.

The product of its digits is 19440, while the sum is 32.

The square root of 165413633 is about 12861.3231434406. The cubic root of 165413633 is about 548.9385954152.

The spelling of 165413633 in words is "one hundred sixty-five million, four hundred thirteen thousand, six hundred thirty-three".