165016665324 has 72 divisors (see below), whose sum is σ = 487801233920. Its totient is φ = 46051159392.

The previous prime is 165016665287. The next prime is 165016665337. The reversal of 165016665324 is 423566610561.

It is a self number, because there is not a number n which added to its sum of digits gives 165016665324.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7603444 + ... + 7625115.

Almost surely, 2^165016665324 is an apocalyptic number.

165016665324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

165016665324 is an abundant number, since it is smaller than the sum of its proper divisors (322784568596).

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

165016665324 is a wasteful number, since it uses less digits than its factorization.

165016665324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15228619 (or 15228614 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 165016665324 in words is "one hundred sixty-five billion, sixteen million, six hundred sixty-five thousand, three hundred twenty-four".