5916660422401 has 2 divisors, whose sum is σ = 5916660422402. Its totient is φ = 5916660422400.

The previous prime is 5916660422399. The next prime is 5916660422417. The reversal of 5916660422401 is 1042240666195.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3893324868801 + 2023335553600 = 1973151^2 + 1422440^2 .

It is a cyclic number.

It is not a de Polignac number, because 5916660422401 - 2¹ = 5916660422399 is a prime.

Together with 5916660422399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5916660422501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2958330211200 + 2958330211201.

It is an arithmetic number, because the mean of its divisors is an integer number (2958330211201).

Almost surely, 2^{5916660422401} is an apocalyptic number.

It is an amenable number.

5916660422401 is a deficient number, since it is larger than the sum of its proper divisors (1).

5916660422401 is an equidigital number, since it uses as much as digits as its factorization.

5916660422401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 5916660422401 in words is "five trillion, nine hundred sixteen billion, six hundred sixty million, four hundred twenty-two thousand, four hundred one".