165013655563406 has 8 divisors (see below), whose sum is σ = 266560520525544. Its totient is φ = 76160148721560.

The previous prime is 165013655563373. The next prime is 165013655563481. The reversal of 165013655563406 is 604365556310561.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3173339530040 + ... + 3173339530091.

It is an arithmetic number, because the mean of its divisors is an integer number (33320065065693).

Almost surely, 2^{165013655563406} is an apocalyptic number.

165013655563406 is a deficient number, since it is larger than the sum of its proper divisors (101546864962138).

165013655563406 is a wasteful number, since it uses less digits than its factorization.

165013655563406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6346679060146.

The product of its (nonzero) digits is 29160000, while the sum is 56.

The spelling of 165013655563406 in words is "one hundred sixty-five trillion, thirteen billion, six hundred fifty-five million, five hundred sixty-three thousand, four hundred six".