165455533 has 8 divisors (see below), whose sum is σ = 166622400. Its totient is φ = 164292960.

The previous prime is 165455513. The next prime is 165455551. The reversal of 165455533 is 335554561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165455533 - 2¹⁷ = 165324461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165455492 and 165455501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165455513) 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, 117568 + ... + 118966.

It is an arithmetic number, because the mean of its divisors is an integer number (20827800).

Almost surely, 2^165455533 is an apocalyptic number.

It is an amenable number.

165455533 is a deficient number, since it is larger than the sum of its proper divisors (1166867).

165455533 is a wasteful number, since it uses less digits than its factorization.

165455533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147.

The product of its digits is 135000, while the sum is 37.

The square root of 165455533 is about 12862.9519551307. The cubic root of 165455533 is about 548.9849410215.

The spelling of 165455533 in words is "one hundred sixty-five million, four hundred fifty-five thousand, five hundred thirty-three".