165707020 has 24 divisors (see below), whose sum is σ = 349116768. Its totient is φ = 66067200.

The previous prime is 165706967. The next prime is 165707051. The reversal of 165707020 is 20707561.

165707020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 165707020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7101 + ... + 19540.

It is an arithmetic number, because the mean of its divisors is an integer number (14546532).

Almost surely, 2^165707020 is an apocalyptic number.

165707020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165707020 is an abundant number, since it is smaller than the sum of its proper divisors (183409748).

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

165707020 is a wasteful number, since it uses less digits than its factorization.

165707020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26961 (or 26959 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 165707020 is about 12872.7238764762. The cubic root of 165707020 is about 549.2629466024.

The spelling of 165707020 in words is "one hundred sixty-five million, seven hundred seven thousand, twenty".