2666479412520 has 1280 divisors, whose sum is σ = 11694743470080. Its totient is φ = 528743116800.

The previous prime is 2666479412507. The next prime is 2666479412539. The reversal of 2666479412520 is 252149746662.

2666479412520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2666479412520² (a number of 26 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 564570879 + ... + 564575601.

It is an arithmetic number, because the mean of its divisors is an integer number (9136518336).

Almost surely, 2^{2666479412520} is an apocalyptic number.

2666479412520 is a gapful number since it is divisible by the number (20) 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 2666479412520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5847371735040).

2666479412520 is an abundant number, since it is smaller than the sum of its proper divisors (9028264057560).

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

2666479412520 is a wasteful number, since it uses less digits than its factorization.

2666479412520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4868 (or 4855 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 2666479412520 in words is "two trillion, six hundred sixty-six billion, four hundred seventy-nine million, four hundred twelve thousand, five hundred twenty".