165983600486 has 32 divisors (see below), whose sum is σ = 287006284800. Its totient is φ = 71253262080.

The previous prime is 165983600479. The next prime is 165983600507. The reversal of 165983600486 is 684006389561.

It is a happy number.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2036171 + ... + 2116118.

It is an arithmetic number, because the mean of its divisors is an integer number (8968946400).

Almost surely, 2^165983600486 is an apocalyptic number.

165983600486 is a deficient number, since it is larger than the sum of its proper divisors (121022684314).

165983600486 is a wasteful number, since it uses less digits than its factorization.

165983600486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4152404.

The product of its (nonzero) digits is 7464960, while the sum is 56.

The spelling of 165983600486 in words is "one hundred sixty-five billion, nine hundred eighty-three million, six hundred thousand, four hundred eighty-six".