2566501352340 has 24 divisors (see below), whose sum is σ = 7186203786720. Its totient is φ = 684400360608.

The previous prime is 2566501352273. The next prime is 2566501352351. The reversal of 2566501352340 is 432531056652.

It is a happy number.

2566501352340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2566501352292 and 2566501352301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21387511210 + ... + 21387511329.

It is an arithmetic number, because the mean of its divisors is an integer number (299425157780).

Almost surely, 2^{2566501352340} is an apocalyptic number.

2566501352340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2566501352340 is an abundant number, since it is smaller than the sum of its proper divisors (4619702434380).

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

2566501352340 is a wasteful number, since it uses less digits than its factorization.

2566501352340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42775022551 (or 42775022549 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 2566501352340 in words is "two trillion, five hundred sixty-six billion, five hundred one million, three hundred fifty-two thousand, three hundred forty".