2080165860864 has 1280 divisors, whose sum is σ = 8019806699520. Its totient is φ = 517570560000.

The previous prime is 2080165860811. The next prime is 2080165860881. The reversal of 2080165860864 is 4680685610802.

2080165860864 is a `hidden beast` number, since 20 + 8 + 0 + 1 + 6 + 5 + 8 + 608 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 2080165860864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1598897014 + ... + 1598898314.

It is an arithmetic number, because the mean of its divisors is an integer number (6265473984).

Almost surely, 2^{2080165860864} is an apocalyptic number.

2080165860864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2080165860864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4009903349760).

2080165860864 is an abundant number, since it is smaller than the sum of its proper divisors (5939640838656).

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

2080165860864 is a wasteful number, since it uses less digits than its factorization.

2080165860864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420 (or 1398 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 2080165860864 in words is "two trillion, eighty billion, one hundred sixty-five million, eight hundred sixty thousand, eight hundred sixty-four".