6716401295663 has 2 divisors, whose sum is σ = 6716401295664. Its totient is φ = 6716401295662.

The previous prime is 6716401295657. The next prime is 6716401295671. The reversal of 6716401295663 is 3665921046176.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6716401295663 is a prime.

It is a super-2 number, since 2×6716401295663² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6716401295599 and 6716401295608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6716401295693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3358200647831 + 3358200647832.

It is an arithmetic number, because the mean of its divisors is an integer number (3358200647832).

Almost surely, 2^{6716401295663} is an apocalyptic number.

6716401295663 is a deficient number, since it is larger than the sum of its proper divisors (1).

6716401295663 is an equidigital number, since it uses as much as digits as its factorization.

6716401295663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9797760, while the sum is 56.

The spelling of 6716401295663 in words is "six trillion, seven hundred sixteen billion, four hundred one million, two hundred ninety-five thousand, six hundred sixty-three".