165090635963 has 8 divisors (see below), whose sum is σ = 181394552640. Its totient is φ = 149002665480.

The previous prime is 165090635959. The next prime is 165090635971. The reversal of 165090635963 is 369536090561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165090635963 - 2² = 165090635959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165090635993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53984945 + ... + 53988002.

It is an arithmetic number, because the mean of its divisors is an integer number (22674319080).

Almost surely, 2^165090635963 is an apocalyptic number.

165090635963 is a deficient number, since it is larger than the sum of its proper divisors (16303916677).

165090635963 is a wasteful number, since it uses less digits than its factorization.

165090635963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107973097.

The product of its (nonzero) digits is 3936600, while the sum is 53.

The spelling of 165090635963 in words is "one hundred sixty-five billion, ninety million, six hundred thirty-five thousand, nine hundred sixty-three".