6122661613 has 4 divisors (see below), whose sum is σ = 6136059580. Its totient is φ = 6109263648.

The previous prime is 6122661553. The next prime is 6122661619. The reversal of 6122661613 is 3161662216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2606408809 + 3516252804 = 51053^2 + 59298^2 .

It is a cyclic number.

It is not a de Polignac number, because 6122661613 - 2²⁹ = 5585790701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6122661619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6698298 + ... + 6699211.

It is an arithmetic number, because the mean of its divisors is an integer number (1534014895).

Almost surely, 2^6122661613 is an apocalyptic number.

It is an amenable number.

6122661613 is a deficient number, since it is larger than the sum of its proper divisors (13397967).

6122661613 is a wasteful number, since it uses less digits than its factorization.

6122661613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13397966.

The product of its digits is 15552, while the sum is 34.

The square root of 6122661613 is about 78247.4383797962. The cubic root of 6122661613 is about 1829.4199852952.

The spelling of 6122661613 in words is "six billion, one hundred twenty-two million, six hundred sixty-one thousand, six hundred thirteen".