66430067 has 16 divisors (see below), whose sum is σ = 77321952. Its totient is φ = 56401920.

The previous prime is 66430057. The next prime is 66430079. The reversal of 66430067 is 76003466.

It is not a de Polignac number, because 66430067 - 2¹⁸ = 66167923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66430057) 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, 24323 + ... + 26915.

It is an arithmetic number, because the mean of its divisors is an integer number (4832622).

Almost surely, 2^66430067 is an apocalyptic number.

66430067 is a deficient number, since it is larger than the sum of its proper divisors (10891885).

66430067 is a wasteful number, since it uses less digits than its factorization.

66430067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 66430067 is about 8150.4642199080. The cubic root of 66430067 is about 404.9998821318. Note that the first 3 decimals are identical.

The spelling of 66430067 in words is "sixty-six million, four hundred thirty thousand, sixty-seven".