2660217261276 has 48 divisors (see below), whose sum is σ = 6693229589760. Its totient is φ = 819579127680.

The previous prime is 2660217261211. The next prime is 2660217261277. The reversal of 2660217261276 is 6721627120662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660217261277) 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, 142278696 + ... + 142297391.

It is an arithmetic number, because the mean of its divisors is an integer number (139442283120).

Almost surely, 2^{2660217261276} is an apocalyptic number.

It is an amenable number.

2660217261276 is an abundant number, since it is smaller than the sum of its proper divisors (4033012328484).

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

2660217261276 is a wasteful number, since it uses less digits than its factorization.

2660217261276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284576154 (or 284576152 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 2660217261276 in words is "two trillion, six hundred sixty billion, two hundred seventeen million, two hundred sixty-one thousand, two hundred seventy-six".