2620004512660 has 12 divisors (see below), whose sum is σ = 5502009476628. Its totient is φ = 1048001805056.

The previous prime is 2620004512637. The next prime is 2620004512733. The reversal of 2620004512660 is 662154000262.

It can be written as a sum of positive squares in 2 ways, for example, as 380755638916 + 2239248873744 = 617054^2 + 1496412^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65500112797 + ... + 65500112836.

It is an arithmetic number, because the mean of its divisors is an integer number (458500789719).

Almost surely, 2^{2620004512660} is an apocalyptic number.

2620004512660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2620004512660 is an abundant number, since it is smaller than the sum of its proper divisors (2882004963968).

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

2620004512660 is a wasteful number, since it uses less digits than its factorization.

2620004512660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131000225642 (or 131000225640 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 2620004512660 in words is "two trillion, six hundred twenty billion, four million, five hundred twelve thousand, six hundred sixty".