72820052663 has 8 divisors (see below), whose sum is σ = 73176837120. Its totient is φ = 72463378680.

The previous prime is 72820052651. The next prime is 72820052677. The reversal of 72820052663 is 36625002827.

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 72820052663 - 2²² = 72815858359 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 72820052663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72820052603) 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, 1499306 + ... + 1547112.

It is an arithmetic number, because the mean of its divisors is an integer number (9147104640).

Almost surely, 2^72820052663 is an apocalyptic number.

72820052663 is a deficient number, since it is larger than the sum of its proper divisors (356784457).

72820052663 is a wasteful number, since it uses less digits than its factorization.

72820052663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55237.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 72820052663 in words is "seventy-two billion, eight hundred twenty million, fifty-two thousand, six hundred sixty-three".