214701666 has 32 divisors (see below), whose sum is σ = 450128448. Its totient is φ = 68194560.

The previous prime is 214701637. The next prime is 214701667. The reversal of 214701666 is 666107412.

It is not an unprimeable number, because it can be changed into a prime (214701667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430 + ... + 20726.

It is an arithmetic number, because the mean of its divisors is an integer number (14066514).

Almost surely, 2^214701666 is an apocalyptic number.

214701666 is an abundant number, since it is smaller than the sum of its proper divisors (235426782).

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

214701666 is a wasteful number, since it uses less digits than its factorization.

214701666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20386.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 214701666 is about 14652.7016621509. The cubic root of 214701666 is about 598.7954221610.

The spelling of 214701666 in words is "two hundred fourteen million, seven hundred one thousand, six hundred sixty-six".