2061565065340 has 24 divisors (see below), whose sum is σ = 4722858150192. Its totient is φ = 749660023680.

The previous prime is 2061565065337. The next prime is 2061565065349. The reversal of 2061565065340 is 435605651602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061565065349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4685374929 + ... + 4685375368.

It is an arithmetic number, because the mean of its divisors is an integer number (196785756258).

Almost surely, 2^{2061565065340} is an apocalyptic number.

2061565065340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2061565065340 is an abundant number, since it is smaller than the sum of its proper divisors (2661293084852).

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

2061565065340 is a wasteful number, since it uses less digits than its factorization.

2061565065340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9370750317 (or 9370750315 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 2061565065340 in words is "two trillion, sixty-one billion, five hundred sixty-five million, sixty-five thousand, three hundred forty".