82661358463 has 8 divisors (see below), whose sum is σ = 82912878720. Its totient is φ = 82410174360.

The previous prime is 82661358449. The next prime is 82661358497. The reversal of 82661358463 is 36485316628.

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 82661358463 - 2²⁵ = 82627804031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82661358463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82661358443) 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, 412968 + ... + 579538.

It is an arithmetic number, because the mean of its divisors is an integer number (10364109840).

Almost surely, 2^82661358463 is an apocalyptic number.

82661358463 is a deficient number, since it is larger than the sum of its proper divisors (251520257).

82661358463 is a wasteful number, since it uses less digits than its factorization.

82661358463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168077.

The product of its digits is 4976640, while the sum is 52.

The spelling of 82661358463 in words is "eighty-two billion, six hundred sixty-one million, three hundred fifty-eight thousand, four hundred sixty-three".