5663721747511 has 2 divisors, whose sum is σ = 5663721747512. Its totient is φ = 5663721747510.

The previous prime is 5663721747479. The next prime is 5663721747527. The reversal of 5663721747511 is 1157471273665.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5663721747511 - 2⁵ = 5663721747479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5663721747581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2831860873755 + 2831860873756.

It is an arithmetic number, because the mean of its divisors is an integer number (2831860873756).

Almost surely, 2^{5663721747511} is an apocalyptic number.

5663721747511 is a deficient number, since it is larger than the sum of its proper divisors (1).

5663721747511 is an equidigital number, since it uses as much as digits as its factorization.

5663721747511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7408800, while the sum is 55.

The spelling of 5663721747511 in words is "five trillion, six hundred sixty-three billion, seven hundred twenty-one million, seven hundred forty-seven thousand, five hundred eleven".