165061664 has 24 divisors (see below), whose sum is σ = 342069840. Its totient is φ = 78186816.

The previous prime is 165061651. The next prime is 165061667. The reversal of 165061664 is 466160561.

It is not an unprimeable number, because it can be changed into a prime (165061667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135134 + ... + 136349.

It is an arithmetic number, because the mean of its divisors is an integer number (14252910).

Almost surely, 2^165061664 is an apocalyptic number.

It is an amenable number.

165061664 is an abundant number, since it is smaller than the sum of its proper divisors (177008176).

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

165061664 is a wasteful number, since it uses less digits than its factorization.

165061664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271512 (or 271504 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 165061664 is about 12847.6326223939. The cubic root of 165061664 is about 548.5489730185.

The spelling of 165061664 in words is "one hundred sixty-five million, sixty-one thousand, six hundred sixty-four".