210161066 has 8 divisors (see below), whose sum is σ = 315532260. Its totient is φ = 104983648.

The previous prime is 210161053. The next prime is 210161069. The reversal of 210161066 is 660161012.

210161066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 202236841 + 7924225 = 14221^2 + 2815^2 .

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

It is not an unprimeable number, because it can be changed into a prime (210161069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45701 + ... + 50088.

Almost surely, 2^210161066 is an apocalyptic number.

210161066 is a deficient number, since it is larger than the sum of its proper divisors (105371194).

210161066 is a wasteful number, since it uses less digits than its factorization.

210161066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96888.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 210161066 is about 14496.9329859802. The cubic root of 210161066 is about 594.5441189394.

The spelling of 210161066 in words is "two hundred ten million, one hundred sixty-one thousand, sixty-six".