66264254 has 16 divisors (see below), whose sum is σ = 114466176. Its totient is φ = 28181400.

The previous prime is 66264223. The next prime is 66264259. The reversal of 66264254 is 45246266.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66264259) 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 7 ways as a sum of consecutive naturals, for example, 16232 + ... + 19899.

It is an arithmetic number, because the mean of its divisors is an integer number (7154136).

Almost surely, 2^66264254 is an apocalyptic number.

66264254 is a deficient number, since it is larger than the sum of its proper divisors (48201922).

66264254 is a wasteful number, since it uses less digits than its factorization.

66264254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36271.

The product of its digits is 69120, while the sum is 35.

The square root of 66264254 is about 8140.2858672162. The cubic root of 66264254 is about 404.6626342578.

The spelling of 66264254 in words is "sixty-six million, two hundred sixty-four thousand, two hundred fifty-four".