2666415425520 has 240 divisors, whose sum is σ = 10383595407360. Its totient is φ = 554060305920.

The previous prime is 2666415425503. The next prime is 2666415425521. The reversal of 2666415425520 is 255245146662.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 2666415425520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666415425521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6355200 + ... + 6761759.

It is an arithmetic number, because the mean of its divisors is an integer number (43264980864).

Almost surely, 2^{2666415425520} is an apocalyptic number.

2666415425520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2666415425520 is an abundant number, since it is smaller than the sum of its proper divisors (7717179981840).

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

2666415425520 is a wasteful number, since it uses less digits than its factorization.

2666415425520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13117004 (or 13116987 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 48.

The spelling of 2666415425520 in words is "two trillion, six hundred sixty-six billion, four hundred fifteen million, four hundred twenty-five thousand, five hundred twenty".