165214755 has 64 divisors (see below), whose sum is σ = 313441920. Its totient is φ = 82280448.

The previous prime is 165214733. The next prime is 165214771. The reversal of 165214755 is 557412561.

165214755 is a `hidden beast` number, since 165 + 21 + 475 + 5 = 666.

It is not a de Polignac number, because 165214755 - 2⁵ = 165214723 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 442749 + ... + 443121.

It is an arithmetic number, because the mean of its divisors is an integer number (4897530).

Almost surely, 2^165214755 is an apocalyptic number.

165214755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165214755 is a deficient number, since it is larger than the sum of its proper divisors (148227165).

165214755 is a wasteful number, since it uses less digits than its factorization.

165214755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597 (or 591 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 165214755 is about 12853.5891874604. The cubic root of 165214755 is about 548.7185095816.

The spelling of 165214755 in words is "one hundred sixty-five million, two hundred fourteen thousand, seven hundred fifty-five".