165496455 has 12 divisors (see below), whose sum is σ = 286860600. Its totient is φ = 88264752.

The previous prime is 165496451. The next prime is 165496469. The reversal of 165496455 is 554694561.

It is not a de Polignac number, because 165496455 - 2² = 165496451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 3677699 = 165496455 / (1 + 6 + 5 + 4 + 9 + 6 + 4 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 165496455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165496451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1838805 + ... + 1838894.

It is an arithmetic number, because the mean of its divisors is an integer number (23905050).

Almost surely, 2^165496455 is an apocalyptic number.

165496455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165496455 is a deficient number, since it is larger than the sum of its proper divisors (121364145).

165496455 is a wasteful number, since it uses less digits than its factorization.

165496455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677710 (or 3677707 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 165496455 is about 12864.5425491931. The cubic root of 165496455 is about 549.0301973098.

The spelling of 165496455 in words is "one hundred sixty-five million, four hundred ninety-six thousand, four hundred fifty-five".