223220165277666 has 16 divisors (see below), whose sum is σ = 446449752280224. Its totient is φ = 74405151471744.

The previous prime is 223220165277643. The next prime is 223220165277673. The reversal of 223220165277666 is 666772561022322.

It is a super-3 number, since 3×223220165277666³ (a number of 44 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392263855 + ... + 392832498.

It is an arithmetic number, because the mean of its divisors is an integer number (27903109517514).

Almost surely, 2^{223220165277666} is an apocalyptic number.

223220165277666 is an abundant number, since it is smaller than the sum of its proper divisors (223229587002558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223220165277666 is a wasteful number, since it uses less digits than its factorization.

223220165277666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785143745.

The product of its (nonzero) digits is 30481920, while the sum is 57.

The spelling of 223220165277666 in words is "two hundred twenty-three trillion, two hundred twenty billion, one hundred sixty-five million, two hundred seventy-seven thousand, six hundred sixty-six".