2660827825885 has 16 divisors (see below), whose sum is σ = 3238113162816. Its totient is φ = 2098607280768.

The previous prime is 2660827825867. The next prime is 2660827825907. The reversal of 2660827825885 is 5885287280662.

It is a cyclic number.

It is not a de Polignac number, because 2660827825885 - 2¹³ = 2660827817693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2660827825885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 696379 + ... + 2409688.

It is an arithmetic number, because the mean of its divisors is an integer number (202382072676).

Almost surely, 2^{2660827825885} is an apocalyptic number.

It is an amenable number.

2660827825885 is a deficient number, since it is larger than the sum of its proper divisors (577285336931).

2660827825885 is a wasteful number, since it uses less digits than its factorization.

2660827825885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108492.

The product of its (nonzero) digits is 206438400, while the sum is 67.

The spelling of 2660827825885 in words is "two trillion, six hundred sixty billion, eight hundred twenty-seven million, eight hundred twenty-five thousand, eight hundred eighty-five".