165996700 has 36 divisors (see below), whose sum is σ = 369007632. Its totient is φ = 64777600.

The previous prime is 165996683. The next prime is 165996713. The reversal of 165996700 is 7699561.

165996700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16144 + ... + 24343.

It is an arithmetic number, because the mean of its divisors is an integer number (10250212).

Almost surely, 2^165996700 is an apocalyptic number.

165996700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165996700 is an abundant number, since it is smaller than the sum of its proper divisors (203010932).

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

165996700 is a wasteful number, since it uses less digits than its factorization.

165996700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40542 (or 40535 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 165996700 is about 12883.9706612519. The cubic root of 165996700 is about 549.5828241473.

The spelling of 165996700 in words is "one hundred sixty-five million, nine hundred ninety-six thousand, seven hundred".