18222162805 has 16 divisors (see below), whose sum is σ = 27262249344. Its totient is φ = 11359270080.

The previous prime is 18222162799. The next prime is 18222162811. The reversal of 18222162805 is 50826122281.

It is an interprime number because it is at equal distance from previous prime (18222162799) and next prime (18222162811).

It is not a de Polignac number, because 18222162805 - 2³ = 18222162797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23664762 + ... + 23665531.

It is an arithmetic number, because the mean of its divisors is an integer number (1703890584).

Almost surely, 2^18222162805 is an apocalyptic number.

It is an amenable number.

18222162805 is a deficient number, since it is larger than the sum of its proper divisors (9040086539).

18222162805 is a wasteful number, since it uses less digits than its factorization.

18222162805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47330316.

The product of its (nonzero) digits is 30720, while the sum is 37.

The spelling of 18222162805 in words is "eighteen billion, two hundred twenty-two million, one hundred sixty-two thousand, eight hundred five".