165696366 has 16 divisors (see below), whose sum is σ = 361519488. Its totient is φ = 50211000.

The previous prime is 165696361. The next prime is 165696371. The reversal of 165696366 is 663696561.

165696366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (165696361) and next prime (165696371).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165696361) 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, 1255210 + ... + 1255341.

It is an arithmetic number, because the mean of its divisors is an integer number (22594968).

Almost surely, 2^165696366 is an apocalyptic number.

165696366 is an abundant number, since it is smaller than the sum of its proper divisors (195823122).

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

165696366 is a wasteful number, since it uses less digits than its factorization.

165696366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510567.

The product of its digits is 1049760, while the sum is 48.

The square root of 165696366 is about 12872.3100490938. The cubic root of 165696366 is about 549.2511748765.

The spelling of 165696366 in words is "one hundred sixty-five million, six hundred ninety-six thousand, three hundred sixty-six".