165208995 has 48 divisors (see below), whose sum is σ = 334264320. Its totient is φ = 73910592.

The previous prime is 165208993. The next prime is 165208997. The reversal of 165208995 is 599802561.

It is an interprime number because it is at equal distance from previous prime (165208993) and next prime (165208997).

It is not a de Polignac number, because 165208995 - 2¹ = 165208993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 165208995.

It is not an unprimeable number, because it can be changed into a prime (165208993) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9226 + ... + 20384.

It is an arithmetic number, because the mean of its divisors is an integer number (6963840).

Almost surely, 2^165208995 is an apocalyptic number.

165208995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165208995 is an abundant number, since it is smaller than the sum of its proper divisors (169055325).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165208995 is a wasteful number, since it uses less digits than its factorization.

165208995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11224 (or 11221 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The square root of 165208995 is about 12853.3651235776. The cubic root of 165208995 is about 548.7121327191.

The spelling of 165208995 in words is "one hundred sixty-five million, two hundred eight thousand, nine hundred ninety-five".