215433651063317 has 2 divisors, whose sum is σ = 215433651063318. Its totient is φ = 215433651063316.

The previous prime is 215433651063313. The next prime is 215433651063361. The reversal of 215433651063317 is 713360156334512.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131574687301201 + 83858963762116 = 11470601^2 + 9157454^2 .

It is a cyclic number.

It is not a de Polignac number, because 215433651063317 - 2² = 215433651063313 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215433651063313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107716825531658 + 107716825531659.

It is an arithmetic number, because the mean of its divisors is an integer number (107716825531659).

Almost surely, 2^{215433651063317} is an apocalyptic number.

It is an amenable number.

215433651063317 is a deficient number, since it is larger than the sum of its proper divisors (1).

215433651063317 is an equidigital number, since it uses as much as digits as its factorization.

215433651063317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4082400, while the sum is 50.

The spelling of 215433651063317 in words is "two hundred fifteen trillion, four hundred thirty-three billion, six hundred fifty-one million, sixty-three thousand, three hundred seventeen".