2215525516663 has 2 divisors, whose sum is σ = 2215525516664. Its totient is φ = 2215525516662.

The previous prime is 2215525516627. The next prime is 2215525516709. The reversal of 2215525516663 is 3666155255122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2215525516663 - 2³⁷ = 2078086563191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215525514663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107762758331 + 1107762758332.

It is an arithmetic number, because the mean of its divisors is an integer number (1107762758332).

Almost surely, 2^{2215525516663} is an apocalyptic number.

2215525516663 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215525516663 is an equidigital number, since it uses as much as digits as its factorization.

2215525516663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240000, while the sum is 49.

The spelling of 2215525516663 in words is "two trillion, two hundred fifteen billion, five hundred twenty-five million, five hundred sixteen thousand, six hundred sixty-three".