2215663223519 has 2 divisors, whose sum is σ = 2215663223520. Its totient is φ = 2215663223518.

The previous prime is 2215663223491. The next prime is 2215663223561. The reversal of 2215663223519 is 9153223665122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2215663223519 is a prime.

It is a super-2 number, since 2×2215663223519² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215663223419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107831611759 + 1107831611760.

It is an arithmetic number, because the mean of its divisors is an integer number (1107831611760).

Almost surely, 2^{2215663223519} is an apocalyptic number.

2215663223519 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215663223519 is an equidigital number, since it uses as much as digits as its factorization.

2215663223519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1166400, while the sum is 47.

The spelling of 2215663223519 in words is "two trillion, two hundred fifteen billion, six hundred sixty-three million, two hundred twenty-three thousand, five hundred nineteen".