5661864113 has 2 divisors, whose sum is σ = 5661864114. Its totient is φ = 5661864112.

The previous prime is 5661864107. The next prime is 5661864133. The reversal of 5661864113 is 3114681665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3530379889 + 2131484224 = 59417^2 + 46168^2 .

It is a cyclic number.

It is not a de Polignac number, because 5661864113 - 2⁶ = 5661864049 is a prime.

It is not a weakly prime, because it can be changed into another prime (5661864133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2830932056 + 2830932057.

It is an arithmetic number, because the mean of its divisors is an integer number (2830932057).

Almost surely, 2^5661864113 is an apocalyptic number.

It is an amenable number.

5661864113 is a deficient number, since it is larger than the sum of its proper divisors (1).

5661864113 is an equidigital number, since it uses as much as digits as its factorization.

5661864113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 41.

The square root of 5661864113 is about 75245.3594117272. The cubic root of 5661864113 is about 1782.3232837838.

The spelling of 5661864113 in words is "five billion, six hundred sixty-one million, eight hundred sixty-four thousand, one hundred thirteen".