201223046166 has 16 divisors (see below), whose sum is σ = 402469337088. Its totient is φ = 67070474600.

The previous prime is 201223046153. The next prime is 201223046177. The reversal of 201223046166 is 661640322102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 854970 + ... + 1064621.

It is an arithmetic number, because the mean of its divisors is an integer number (25154333568).

Almost surely, 2^201223046166 is an apocalyptic number.

201223046166 is an abundant number, since it is smaller than the sum of its proper divisors (201246290922).

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

201223046166 is a wasteful number, since it uses less digits than its factorization.

201223046166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937067.

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 201223046166 its reverse (661640322102), we get a palindrome (862863368268).

The spelling of 201223046166 in words is "two hundred one billion, two hundred twenty-three million, forty-six thousand, one hundred sixty-six".