215605224319 has 2 divisors, whose sum is σ = 215605224320. Its totient is φ = 215605224318.

The previous prime is 215605224203. The next prime is 215605224337. The reversal of 215605224319 is 913422506512.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-215605224319 is a prime.

It is a super-2 number, since 2×215605224319² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215605224349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107802612159 + 107802612160.

It is an arithmetic number, because the mean of its divisors is an integer number (107802612160).

Almost surely, 2^215605224319 is an apocalyptic number.

215605224319 is a deficient number, since it is larger than the sum of its proper divisors (1).

215605224319 is an equidigital number, since it uses as much as digits as its factorization.

215605224319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 215605224319 in words is "two hundred fifteen billion, six hundred five million, two hundred twenty-four thousand, three hundred nineteen".