215134166459 has 2 divisors, whose sum is σ = 215134166460. Its totient is φ = 215134166458.

The previous prime is 215134166449. The next prime is 215134166531. The reversal of 215134166459 is 954661431512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215134166459 - 2²⁴ = 215117389243 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (215134166449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107567083229 + 107567083230.

It is an arithmetic number, because the mean of its divisors is an integer number (107567083230).

Almost surely, 2^215134166459 is an apocalyptic number.

215134166459 is a deficient number, since it is larger than the sum of its proper divisors (1).

215134166459 is an equidigital number, since it uses as much as digits as its factorization.

215134166459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 47.

The spelling of 215134166459 in words is "two hundred fifteen billion, one hundred thirty-four million, one hundred sixty-six thousand, four hundred fifty-nine".