66214275 has 48 divisors (see below), whose sum is σ = 113992704. Its totient is φ = 33886080.

The previous prime is 66214241. The next prime is 66214277. The reversal of 66214275 is 57241266.

It is not a de Polignac number, because 66214275 - 2⁷ = 66214147 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (66214277) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 296814 + ... + 297036.

It is an arithmetic number, because the mean of its divisors is an integer number (2374848).

Almost surely, 2^66214275 is an apocalyptic number.

66214275 is a deficient number, since it is larger than the sum of its proper divisors (47778429).

66214275 is a wasteful number, since it uses less digits than its factorization.

66214275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 375 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 66214275 is about 8137.2154328124. The cubic root of 66214275 is about 404.5608713945.

The spelling of 66214275 in words is "sixty-six million, two hundred fourteen thousand, two hundred seventy-five".