165998496 has 48 divisors (see below), whose sum is σ = 441733824. Its totient is φ = 54572544.

The previous prime is 165998473. The next prime is 165998509. The reversal of 165998496 is 694899561.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4836 + ... + 18851.

It is an arithmetic number, because the mean of its divisors is an integer number (9202788).

Almost surely, 2^165998496 is an apocalyptic number.

165998496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165998496 is an abundant number, since it is smaller than the sum of its proper divisors (275735328).

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

165998496 is a wasteful number, since it uses less digits than its factorization.

165998496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23773 (or 23765 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 57.

The square root of 165998496 is about 12884.0403600734. The cubic root of 165998496 is about 549.5848062092.

The spelling of 165998496 in words is "one hundred sixty-five million, nine hundred ninety-eight thousand, four hundred ninety-six".