66479480 has 32 divisors (see below), whose sum is σ = 157453200. Its totient is φ = 25191936.

The previous prime is 66479473. The next prime is 66479507. The reversal of 66479480 is 8497466.

It is a super-2 number, since 2×66479480² = 8839042522140800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42977 + ... + 44496.

Almost surely, 2^66479480 is an apocalyptic number.

It is an amenable number.

66479480 is an abundant number, since it is smaller than the sum of its proper divisors (90973720).

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

66479480 is a wasteful number, since it uses less digits than its factorization.

66479480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87503 (or 87499 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 66479480 is about 8153.4949561522. The cubic root of 66479480 is about 405.1002749217.

The spelling of 66479480 in words is "sixty-six million, four hundred seventy-nine thousand, four hundred eighty".