165455433 has 32 divisors (see below), whose sum is σ = 287978880. Its totient is φ = 92560320.

The previous prime is 165455431. The next prime is 165455447. The reversal of 165455433 is 334554561.

165455433 is a `hidden beast` number, since 165 + 455 + 43 + 3 = 666.

165455433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 165455433 - 2¹ = 165455431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165455431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17566 + ... + 25287.

It is an arithmetic number, because the mean of its divisors is an integer number (8999340).

Almost surely, 2^165455433 is an apocalyptic number.

165455433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

165455433 is a deficient number, since it is larger than the sum of its proper divisors (122523447).

165455433 is a wasteful number, since it uses less digits than its factorization.

165455433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42886 (or 42880 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 165455433 is about 12862.9480679975. The cubic root of 165455433 is about 548.9848304208.

The spelling of 165455433 in words is "one hundred sixty-five million, four hundred fifty-five thousand, four hundred thirty-three".