82668017637503 has 8 divisors (see below), whose sum is σ = 82918650032400. Its totient is φ = 82417416762240.

The previous prime is 82668017637481. The next prime is 82668017637511. The reversal of 82668017637503 is 30573671086628.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82668017637503 is a prime.

It is a super-2 number, since 2×82668017637503² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82668017639503) 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, 2621153 + ... + 13122746.

It is an arithmetic number, because the mean of its divisors is an integer number (10364831254050).

Almost surely, 2^{82668017637503} is an apocalyptic number.

82668017637503 is a deficient number, since it is larger than the sum of its proper divisors (250632394897).

82668017637503 is a wasteful number, since it uses less digits than its factorization.

82668017637503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15759817.

The product of its (nonzero) digits is 60963840, while the sum is 62.

The spelling of 82668017637503 in words is "eighty-two trillion, six hundred sixty-eight billion, seventeen million, six hundred thirty-seven thousand, five hundred three".