214165966 has 24 divisors (see below), whose sum is σ = 395683056. Its totient is φ = 86385600.

The previous prime is 214165961. The next prime is 214165993. The reversal of 214165966 is 669561412.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214165961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62610 + ... + 65941.

It is an arithmetic number, because the mean of its divisors is an integer number (16486794).

Almost surely, 2^214165966 is an apocalyptic number.

214165966 is a deficient number, since it is larger than the sum of its proper divisors (181517090).

214165966 is a wasteful number, since it uses less digits than its factorization.

214165966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128584 (or 128577 counting only the distinct ones).

The product of its digits is 77760, while the sum is 40.

The square root of 214165966 is about 14634.4103400171. The cubic root of 214165966 is about 598.2969912121.

The spelling of 214165966 in words is "two hundred fourteen million, one hundred sixty-five thousand, nine hundred sixty-six".