165151964 has 12 divisors (see below), whose sum is σ = 293087088. Its totient is φ = 81412800.

The previous prime is 165151913. The next prime is 165151967. The reversal of 165151964 is 469151561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165151967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290477 + ... + 291044.

It is an arithmetic number, because the mean of its divisors is an integer number (24423924).

Almost surely, 2^165151964 is an apocalyptic number.

It is an amenable number.

165151964 is a deficient number, since it is larger than the sum of its proper divisors (127935124).

165151964 is a wasteful number, since it uses less digits than its factorization.

165151964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581596 (or 581594 counting only the distinct ones).

The product of its digits is 32400, while the sum is 38.

The square root of 165151964 is about 12851.1464080058. The cubic root of 165151964 is about 548.6489860297.

The spelling of 165151964 in words is "one hundred sixty-five million, one hundred fifty-one thousand, nine hundred sixty-four".