66045267 has 16 divisors (see below), whose sum is σ = 101220000. Its totient is φ = 42511392.

The previous prime is 66045257. The next prime is 66045277. The reversal of 66045267 is 76254066.

It is an interprime number because it is at equal distance from previous prime (66045257) and next prime (66045277).

It is not a de Polignac number, because 66045267 - 2⁴ = 66045251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66045257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41392 + ... + 42957.

It is an arithmetic number, because the mean of its divisors is an integer number (6326250).

Almost surely, 2^66045267 is an apocalyptic number.

66045267 is a deficient number, since it is larger than the sum of its proper divisors (35174733).

66045267 is a wasteful number, since it uses less digits than its factorization.

66045267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84387 (or 84381 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 66045267 is about 8126.8239183583. The cubic root of 66045267 is about 404.2163722668.

The spelling of 66045267 in words is "sixty-six million, forty-five thousand, two hundred sixty-seven".