2665242440564 has 96 divisors (see below), whose sum is σ = 5479544246400. Its totient is φ = 1120877711360.

The previous prime is 2665242440551. The next prime is 2665242440659. The reversal of 2665242440564 is 4650442425662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11401247 + ... + 11632665.

It is an arithmetic number, because the mean of its divisors is an integer number (57078585900).

Almost surely, 2^{2665242440564} is an apocalyptic number.

It is an amenable number.

2665242440564 is an abundant number, since it is smaller than the sum of its proper divisors (2814301805836).

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

2665242440564 is a wasteful number, since it uses less digits than its factorization.

2665242440564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231713 (or 231711 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 50.

The spelling of 2665242440564 in words is "two trillion, six hundred sixty-five billion, two hundred forty-two million, four hundred forty thousand, five hundred sixty-four".