83800456660 has 24 divisors (see below), whose sum is σ = 175989703176. Its totient is φ = 33518517120.

The previous prime is 83800456639. The next prime is 83800456679. The reversal of 83800456660 is 6665400838.

It can be written as a sum of positive squares in 4 ways, for example, as 8020277136 + 75780179524 = 89556^2 + 275282^2 .

It is a super-3 number, since 3×83800456660³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83800456660.

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, 358650 + ... + 544270.

It is an arithmetic number, because the mean of its divisors is an integer number (7332904299).

Almost surely, 2^83800456660 is an apocalyptic number.

It is an amenable number.

83800456660 is an abundant number, since it is smaller than the sum of its proper divisors (92189246516).

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

83800456660 is a wasteful number, since it uses less digits than its factorization.

83800456660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208203 (or 208201 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 83800456660 in words is "eighty-three billion, eight hundred million, four hundred fifty-six thousand, six hundred sixty".