165624465 has 8 divisors (see below), whose sum is σ = 264999168. Its totient is φ = 88333040.

The previous prime is 165624457. The next prime is 165624467. The reversal of 165624465 is 564426561.

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

It is not a de Polignac number, because 165624465 - 2³ = 165624457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165624467) 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, 5520801 + ... + 5520830.

It is an arithmetic number, because the mean of its divisors is an integer number (33124896).

Almost surely, 2^165624465 is an apocalyptic number.

165624465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165624465 is a deficient number, since it is larger than the sum of its proper divisors (99374703).

165624465 is a wasteful number, since it uses less digits than its factorization.

165624465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11041639.

The product of its digits is 172800, while the sum is 39.

The square root of 165624465 is about 12869.5168906995. The cubic root of 165624465 is about 549.1717174462.

The spelling of 165624465 in words is "one hundred sixty-five million, six hundred twenty-four thousand, four hundred sixty-five".