66260445 has 8 divisors (see below), whose sum is σ = 106016736. Its totient is φ = 35338896.

The previous prime is 66260431. The next prime is 66260471. The reversal of 66260445 is 54406266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66260445 - 2⁷ = 66260317 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 2208667 + ... + 2208696.

It is an arithmetic number, because the mean of its divisors is an integer number (13252092).

Almost surely, 2^66260445 is an apocalyptic number.

It is an amenable number.

66260445 is a deficient number, since it is larger than the sum of its proper divisors (39756291).

66260445 is a wasteful number, since it uses less digits than its factorization.

66260445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4417371.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 66260445 is about 8140.0519040114. The cubic root of 66260445 is about 404.6548805071.

The spelling of 66260445 in words is "sixty-six million, two hundred sixty thousand, four hundred forty-five".