66079618 has 16 divisors (see below), whose sum is σ = 110769120. Its totient is φ = 29303200.

The previous prime is 66079609. The next prime is 66079619. The reversal of 66079618 is 81697066.

It is not an unprimeable number, because it can be changed into a prime (66079619) 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, 35728 + ... + 37531.

It is an arithmetic number, because the mean of its divisors is an integer number (6923070).

Almost surely, 2^66079618 is an apocalyptic number.

66079618 is a deficient number, since it is larger than the sum of its proper divisors (44689502).

66079618 is a wasteful number, since it uses less digits than its factorization.

66079618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73313.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 66079618 is about 8128.9370768877. The cubic root of 66079618 is about 404.2864395133.

The spelling of 66079618 in words is "sixty-six million, seventy-nine thousand, six hundred eighteen".