212160066 has 16 divisors (see below), whose sum is σ = 427024704. Its totient is φ = 70269264.

The previous prime is 212160059. The next prime is 212160083. The reversal of 212160066 is 660061212.

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, 111670 + ... + 113553.

It is an arithmetic number, because the mean of its divisors is an integer number (26689044).

Almost surely, 2^212160066 is an apocalyptic number.

212160066 is an abundant number, since it is smaller than the sum of its proper divisors (214864638).

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

212160066 is a wasteful number, since it uses less digits than its factorization.

212160066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225385.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 212160066 is about 14565.7154304208. The cubic root of 212160066 is about 596.4232257346.

The spelling of 212160066 in words is "two hundred twelve million, one hundred sixty thousand, sixty-six".