165605627 has 8 divisors (see below), whose sum is σ = 186488832. Its totient is φ = 145693800.

The previous prime is 165605621. The next prime is 165605633. The reversal of 165605627 is 726506561.

It is an interprime number because it is at equal distance from previous prime (165605621) and next prime (165605633).

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

It is not a de Polignac number, because 165605627 - 2¹² = 165601531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165605621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242483 + ... + 243164.

It is an arithmetic number, because the mean of its divisors is an integer number (23311104).

Almost surely, 2^165605627 is an apocalyptic number.

165605627 is a deficient number, since it is larger than the sum of its proper divisors (20883205).

165605627 is a wasteful number, since it uses less digits than its factorization.

165605627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485689.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 165605627 is about 12868.7849853823. The cubic root of 165605627 is about 549.1508958664.

The spelling of 165605627 in words is "one hundred sixty-five million, six hundred five thousand, six hundred twenty-seven".