5901663683557 has 2 divisors, whose sum is σ = 5901663683558. Its totient is φ = 5901663683556.

The previous prime is 5901663683543. The next prime is 5901663683561. The reversal of 5901663683557 is 7553863661095.

It is a Cunningham number, because it is equal to 2429334²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5901663683556 + 1 = 2429334^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 5901663683557 - 2²³ = 5901655294949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5901663663557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2950831841778 + 2950831841779.

It is an arithmetic number, because the mean of its divisors is an integer number (2950831841779).

Almost surely, 2^{5901663683557} is an apocalyptic number.

It is an amenable number.

5901663683557 is a deficient number, since it is larger than the sum of its proper divisors (1).

5901663683557 is an equidigital number, since it uses as much as digits as its factorization.

5901663683557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472000, while the sum is 64.

The spelling of 5901663683557 in words is "five trillion, nine hundred one billion, six hundred sixty-three million, six hundred eighty-three thousand, five hundred fifty-seven".