2660054780880 has 400 divisors, whose sum is σ = 11179684454400. Its totient is φ = 572246913024.

The previous prime is 2660054780843. The next prime is 2660054780899. The reversal of 2660054780880 is 880874500662.

2660054780880 is a `hidden beast` number, since 26 + 600 + 5 + 4 + 7 + 8 + 0 + 8 + 8 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 953680 + ... + 2495919.

It is an arithmetic number, because the mean of its divisors is an integer number (27949211136).

Almost surely, 2^{2660054780880} is an apocalyptic number.

2660054780880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2660054780880 is an abundant number, since it is smaller than the sum of its proper divisors (8519629673520).

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

2660054780880 is a wasteful number, since it uses less digits than its factorization.

2660054780880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3449648 (or 3449633 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 2660054780880 in words is "two trillion, six hundred sixty billion, fifty-four million, seven hundred eighty thousand, eight hundred eighty".