165964030 has 24 divisors (see below), whose sum is σ = 317347128. Its totient is φ = 62479488.

The previous prime is 165964027. The next prime is 165964037. The reversal of 165964030 is 30469561.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165964037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25824 + ... + 31603.

It is an arithmetic number, because the mean of its divisors is an integer number (13222797).

Almost surely, 2^165964030 is an apocalyptic number.

165964030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165964030 is a deficient number, since it is larger than the sum of its proper divisors (151383098).

165964030 is a wasteful number, since it uses less digits than its factorization.

165964030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57468 (or 57451 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 165964030 is about 12882.7027443778. The cubic root of 165964030 is about 549.5467671075.

The spelling of 165964030 in words is "one hundred sixty-five million, nine hundred sixty-four thousand, thirty".