363661661316217 has 12 divisors (see below), whose sum is σ = 400263694135344. Its totient is φ = 327675833078720.

The previous prime is 363661661316179. The next prime is 363661661316223. The reversal of 363661661316217 is 712613166166363.

It is not a de Polignac number, because 363661661316217 - 2¹¹ = 363661661314169 is a prime.

It is a super-2 number, since 2×363661661316217² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (363661662316217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1294406923 + ... + 1294687840.

It is an arithmetic number, because the mean of its divisors is an integer number (33355307844612).

Almost surely, 2^{363661661316217} is an apocalyptic number.

It is an amenable number.

363661661316217 is a deficient number, since it is larger than the sum of its proper divisors (36602032819127).

363661661316217 is a wasteful number, since it uses less digits than its factorization.

363661661316217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589095000 (or 2589094887 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 58.

The spelling of 363661661316217 in words is "three hundred sixty-three trillion, six hundred sixty-one billion, six hundred sixty-one million, three hundred sixteen thousand, two hundred seventeen".