215134166422 has 32 divisors (see below), whose sum is σ = 395995599360. Its totient is φ = 85554591360.

The previous prime is 215134166363. The next prime is 215134166449. The reversal of 215134166422 is 224661431512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6348772 + ... + 6382567.

It is an arithmetic number, because the mean of its divisors is an integer number (12374862480).

Almost surely, 2^215134166422 is an apocalyptic number.

215134166422 is a deficient number, since it is larger than the sum of its proper divisors (180861432938).

215134166422 is a wasteful number, since it uses less digits than its factorization.

215134166422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12731436.

The product of its digits is 69120, while the sum is 37.

Adding to 215134166422 its reverse (224661431512), we get a palindrome (439795597934).

The spelling of 215134166422 in words is "two hundred fifteen billion, one hundred thirty-four million, one hundred sixty-six thousand, four hundred twenty-two".