2666308918080 has 168 divisors, whose sum is σ = 8934536453472. Its totient is φ = 673593744384.

The previous prime is 2666308918073. The next prime is 2666308918103. The reversal of 2666308918080 is 808198036662.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 2666308918080.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3500262 + ... + 4193381.

It is an arithmetic number, because the mean of its divisors is an integer number (53181764604).

Almost surely, 2^{2666308918080} is an apocalyptic number.

2666308918080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2666308918080 is an abundant number, since it is smaller than the sum of its proper divisors (6268227535392).

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

2666308918080 is a wasteful number, since it uses less digits than its factorization.

2666308918080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7693701 (or 7693672 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 57.

The spelling of 2666308918080 in words is "two trillion, six hundred sixty-six billion, three hundred eight million, nine hundred eighteen thousand, eighty".