222105671663605 has 8 divisors (see below), whose sum is σ = 266526893362392. Its totient is φ = 177684479086848.

The previous prime is 222105671663573. The next prime is 222105671663639. The reversal of 222105671663605 is 506366176501222.

It can be written as a sum of positive squares in 4 ways, for example, as 44306888820964 + 177798782842641 = 6656342^2 + 13334121^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222105671663605 - 2⁵ = 222105671663573 is a prime.

It is a super-2 number, since 2×222105671663605² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 16647537 + ... + 26857993.

It is an arithmetic number, because the mean of its divisors is an integer number (33315861670299).

Almost surely, 2^{222105671663605} is an apocalyptic number.

It is an amenable number.

222105671663605 is a deficient number, since it is larger than the sum of its proper divisors (44421221698787).

222105671663605 is a wasteful number, since it uses less digits than its factorization.

222105671663605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14561015.

The product of its (nonzero) digits is 5443200, while the sum is 52.

The spelling of 222105671663605 in words is "two hundred twenty-two trillion, one hundred five billion, six hundred seventy-one million, six hundred sixty-three thousand, six hundred five".