2640027650265 has 24 divisors (see below), whose sum is σ = 4578658473480. Its totient is φ = 1407211501824.

The previous prime is 2640027650231. The next prime is 2640027650279. The reversal of 2640027650265 is 5620567200462.

2640027650265 is a `hidden beast` number, since 2 + 64 + 0 + 0 + 27 + 6 + 502 + 65 = 666.

2640027650265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 283965357456 + 2356062292809 = 532884^2 + 1534947^2 .

It is not a de Polignac number, because 2640027650265 - 2²⁰ = 2640026601689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2640027650265.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16654510 + ... + 16812279.

It is an arithmetic number, because the mean of its divisors is an integer number (190777436395).

Almost surely, 2^{2640027650265} is an apocalyptic number.

It is an amenable number.

2640027650265 is a deficient number, since it is larger than the sum of its proper divisors (1938630823215).

2640027650265 is a wasteful number, since it uses less digits than its factorization.

2640027650265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33468553 (or 33468550 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 2640027650265 in words is "two trillion, six hundred forty billion, twenty-seven million, six hundred fifty thousand, two hundred sixty-five".