6817001666072 has 32 divisors (see below), whose sum is σ = 14239758128400. Its totient is φ = 3037815064704.

The previous prime is 6817001666039. The next prime is 6817001666099. The reversal of 6817001666072 is 2706661007186.

It is a self number, because there is not a number n which added to its sum of digits gives 6817001666072.

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, 1130136518 + ... + 1130142549.

Almost surely, 2^{6817001666072} is an apocalyptic number.

It is an amenable number.

6817001666072 is an abundant number, since it is smaller than the sum of its proper divisors (7422756462328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6817001666072 is a wasteful number, since it uses less digits than its factorization.

6817001666072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260279115 (or 2260279111 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 6817001666072 in words is "six trillion, eight hundred seventeen billion, one million, six hundred sixty-six thousand, seventy-two".