2665003613 has 2 divisors, whose sum is σ = 2665003614. Its totient is φ = 2665003612.

The previous prime is 2665003577. The next prime is 2665003643. The reversal of 2665003613 is 3163005662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2440063609 + 224940004 = 49397^2 + 14998^2 .

It is a cyclic number.

It is not a de Polignac number, because 2665003613 - 2¹² = 2664999517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2665003613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2665003643) 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 as a sum of consecutive naturals, namely, 1332501806 + 1332501807.

It is an arithmetic number, because the mean of its divisors is an integer number (1332501807).

Almost surely, 2^2665003613 is an apocalyptic number.

It is an amenable number.

2665003613 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665003613 is an equidigital number, since it uses as much as digits as its factorization.

2665003613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 2665003613 is about 51623.6729902087. The cubic root of 2665003613 is about 1386.4342145011.

The spelling of 2665003613 in words is "two billion, six hundred sixty-five million, three thousand, six hundred thirteen".