165942495 has 48 divisors (see below), whose sum is σ = 300736800. Its totient is φ = 84537600.

The previous prime is 165942463. The next prime is 165942529. The reversal of 165942495 is 594249561.

165942495 is a `hidden beast` number, since 16 + 594 + 2 + 49 + 5 = 666.

It is not a de Polignac number, because 165942495 - 2⁵ = 165942463 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 165942495.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 131176 + ... + 132434.

It is an arithmetic number, because the mean of its divisors is an integer number (6265350).

Almost surely, 2^165942495 is an apocalyptic number.

165942495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165942495 is a deficient number, since it is larger than the sum of its proper divisors (134794305).

165942495 is a wasteful number, since it uses less digits than its factorization.

165942495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400 (or 1397 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 165942495 is about 12881.8669066250. The cubic root of 165942495 is about 549.5229968934.

The spelling of 165942495 in words is "one hundred sixty-five million, nine hundred forty-two thousand, four hundred ninety-five".