66045859 has 8 divisors (see below), whose sum is σ = 73231920. Its totient is φ = 59056800.

The previous prime is 66045829. The next prime is 66045869. The reversal of 66045859 is 95854066.

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

It is not a de Polignac number, because 66045859 - 2¹¹ = 66043811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66045829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48544 + ... + 49885.

It is an arithmetic number, because the mean of its divisors is an integer number (9153990).

Almost surely, 2^66045859 is an apocalyptic number.

66045859 is a deficient number, since it is larger than the sum of its proper divisors (7186061).

66045859 is a wasteful number, since it uses less digits than its factorization.

66045859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98501.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 66045859 is about 8126.8603408697. The cubic root of 66045859 is about 404.2175800010.

The spelling of 66045859 in words is "sixty-six million, forty-five thousand, eight hundred fifty-nine".