201668022 has 32 divisors (see below), whose sum is σ = 458578560. Its totient is φ = 65658600.

The previous prime is 201668017. The next prime is 201668041. The reversal of 201668022 is 220866102.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41104 + ... + 45747.

It is an arithmetic number, because the mean of its divisors is an integer number (14330580).

Almost surely, 2^201668022 is an apocalyptic number.

201668022 is an abundant number, since it is smaller than the sum of its proper divisors (256910538).

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

201668022 is a wasteful number, since it uses less digits than its factorization.

201668022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86905 (or 86899 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 201668022 is about 14200.9866558630. The cubic root of 201668022 is about 586.4248240587.

The spelling of 201668022 in words is "two hundred one million, six hundred sixty-eight thousand, twenty-two".