2666325061 has 4 divisors (see below), whose sum is σ = 2689920972. Its totient is φ = 2642729152.

The previous prime is 2666325031. The next prime is 2666325091. The reversal of 2666325061 is 1605236662.

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

It is an interprime number because it is at equal distance from previous prime (2666325031) and next prime (2666325091).

It can be written as a sum of positive squares in 2 ways, for example, as 1153892961 + 1512432100 = 33969^2 + 38890^2 .

It is a cyclic number.

It is not a de Polignac number, because 2666325061 - 2¹¹ = 2666323013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2666325061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666325001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11797786 + ... + 11798011.

It is an arithmetic number, because the mean of its divisors is an integer number (672480243).

Almost surely, 2^2666325061 is an apocalyptic number.

It is an amenable number.

2666325061 is a deficient number, since it is larger than the sum of its proper divisors (23595911).

2666325061 is a wasteful number, since it uses less digits than its factorization.

2666325061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23595910.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 2666325061 is about 51636.4702608534. The cubic root of 2666325061 is about 1386.6633321375.

The spelling of 2666325061 in words is "two billion, six hundred sixty-six million, three hundred twenty-five thousand, sixty-one".