6603861461 has 2 divisors, whose sum is σ = 6603861462. Its totient is φ = 6603861460.

The previous prime is 6603861437. The next prime is 6603861479. The reversal of 6603861461 is 1641683066.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5566055236 + 1037806225 = 74606^2 + 32215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6603861461 is a prime.

It is a super-2 number, since 2×6603861461² = 87221972392162109042, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6603861401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3301930730 + 3301930731.

It is an arithmetic number, because the mean of its divisors is an integer number (3301930731).

Almost surely, 2^6603861461 is an apocalyptic number.

It is an amenable number.

6603861461 is a deficient number, since it is larger than the sum of its proper divisors (1).

6603861461 is an equidigital number, since it uses as much as digits as its factorization.

6603861461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 6603861461 is about 81264.1462208273. The cubic root of 6603861461 is about 1876.1432043238.

The spelling of 6603861461 in words is "six billion, six hundred three million, eight hundred sixty-one thousand, four hundred sixty-one".