201666968 has 24 divisors (see below), whose sum is σ = 380665740. Its totient is φ = 100160400.

The previous prime is 201666923. The next prime is 201666979. The reversal of 201666968 is 869666102.

201666968 = T₃₉₂ + T₃₉₃ + ... + T₁₀₈₂.

201666968 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 291503 + ... + 292193.

Almost surely, 2^201666968 is an apocalyptic number.

It is an amenable number.

201666968 is a deficient number, since it is larger than the sum of its proper divisors (178998772).

201666968 is an equidigital number, since it uses as much as digits as its factorization.

201666968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 201666968 is about 14200.9495457170. The cubic root of 201666968 is about 586.4238024246.

The spelling of 201666968 in words is "two hundred one million, six hundred sixty-six thousand, nine hundred sixty-eight".