2605746207660 has 48 divisors (see below), whose sum is σ = 7493280992736. Its totient is φ = 676085501952.

The previous prime is 2605746207637. The next prime is 2605746207667. The reversal of 2605746207660 is 667026475062.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2605746207667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 586877557 + ... + 586881996.

It is an arithmetic number, because the mean of its divisors is an integer number (156110020682).

Almost surely, 2^{2605746207660} is an apocalyptic number.

2605746207660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2605746207660 is an abundant number, since it is smaller than the sum of its proper divisors (4887534785076).

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

2605746207660 is a wasteful number, since it uses less digits than its factorization.

2605746207660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173759602 (or 1173759600 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 51.

The spelling of 2605746207660 in words is "two trillion, six hundred five billion, seven hundred forty-six million, two hundred seven thousand, six hundred sixty".