9916531640063 has 2 divisors, whose sum is σ = 9916531640064. Its totient is φ = 9916531640062.

The previous prime is 9916531640033. The next prime is 9916531640083. The reversal of 9916531640063 is 3600461356199.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9916531640063 - 2²⁶ = 9916464531199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9916531639987 and 9916531640014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9916531640003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4958265820031 + 4958265820032.

It is an arithmetic number, because the mean of its divisors is an integer number (4958265820032).

Almost surely, 2^{9916531640063} is an apocalyptic number.

9916531640063 is a deficient number, since it is larger than the sum of its proper divisors (1).

9916531640063 is an equidigital number, since it uses as much as digits as its factorization.

9916531640063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3149280, while the sum is 53.

The spelling of 9916531640063 in words is "nine trillion, nine hundred sixteen billion, five hundred thirty-one million, six hundred forty thousand, sixty-three".