2640561264414 has 48 divisors (see below), whose sum is σ = 5978826577152. Its totient is φ = 841425745104.

The previous prime is 2640561264413. The next prime is 2640561264421. The reversal of 2640561264414 is 4144621650462.

2640561264414 is a `hidden beast` number, since 2 + 6 + 40 + 561 + 2 + 6 + 4 + 41 + 4 = 666.

It is a super-2 number, since 2×2640561264414² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2640561264414.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640561264413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36257004 + ... + 36329759.

It is an arithmetic number, because the mean of its divisors is an integer number (124558887024).

Almost surely, 2^{2640561264414} is an apocalyptic number.

2640561264414 is an abundant number, since it is smaller than the sum of its proper divisors (3338265312738).

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

2640561264414 is a wasteful number, since it uses less digits than its factorization.

2640561264414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72586861 (or 72586858 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

The spelling of 2640561264414 in words is "two trillion, six hundred forty billion, five hundred sixty-one million, two hundred sixty-four thousand, four hundred fourteen".