20344663156165 has 8 divisors (see below), whose sum is σ = 24493118902560. Its totient is φ = 16222715114832.

The previous prime is 20344663156141. The next prime is 20344663156171. The reversal of 20344663156165 is 56165136644302.

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 20344663156165 - 2⁵ = 20344663156133 is a prime.

It is a congruent number.

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, 6626924575 + ... + 6626927644.

It is an arithmetic number, because the mean of its divisors is an integer number (3061639862820).

Almost surely, 2^{20344663156165} is an apocalyptic number.

It is an amenable number.

20344663156165 is a deficient number, since it is larger than the sum of its proper divisors (4148455746395).

20344663156165 is a wasteful number, since it uses less digits than its factorization.

20344663156165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13253852531.

The product of its (nonzero) digits is 9331200, while the sum is 52.

The spelling of 20344663156165 in words is "twenty trillion, three hundred forty-four billion, six hundred sixty-three million, one hundred fifty-six thousand, one hundred sixty-five".