6602770261 has 2 divisors, whose sum is σ = 6602770262. Its totient is φ = 6602770260.

The previous prime is 6602770253. The next prime is 6602770283. The reversal of 6602770261 is 1620772066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6120089361 + 482680900 = 78231^2 + 21970^2 .

It is a cyclic number.

It is not a de Polignac number, because 6602770261 - 2³ = 6602770253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6602770261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6602770561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3301385130 + 3301385131.

It is an arithmetic number, because the mean of its divisors is an integer number (3301385131).

Almost surely, 2^6602770261 is an apocalyptic number.

It is an amenable number.

6602770261 is a deficient number, since it is larger than the sum of its proper divisors (1).

6602770261 is an equidigital number, since it uses as much as digits as its factorization.

6602770261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 6602770261 is about 81257.4320354760. The cubic root of 6602770261 is about 1876.0398627538.

The spelling of 6602770261 in words is "six billion, six hundred two million, seven hundred seventy thousand, two hundred sixty-one".