66479260 has 24 divisors (see below), whose sum is σ = 140537376. Its totient is φ = 26414400.

The previous prime is 66479249. The next prime is 66479263. The reversal of 66479260 is 6297466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66479263) 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, 7987 + ... + 14026.

It is an arithmetic number, because the mean of its divisors is an integer number (5855724).

Almost surely, 2^66479260 is an apocalyptic number.

It is an amenable number.

66479260 is an abundant number, since it is smaller than the sum of its proper divisors (74058116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66479260 is a wasteful number, since it uses less digits than its factorization.

66479260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22173 (or 22171 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 66479260 is about 8153.4814649940. The cubic root of 66479260 is about 405.0998280562.

The spelling of 66479260 in words is "sixty-six million, four hundred seventy-nine thousand, two hundred sixty".