66480804 has 48 divisors (see below), whose sum is σ = 185619840. Its totient is φ = 20455200.

The previous prime is 66480763. The next prime is 66480811. The reversal of 66480804 is 40808466.

66480804 is a `hidden beast` number, since 6 + 648 + 0 + 8 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22272 + ... + 25079.

It is an arithmetic number, because the mean of its divisors is an integer number (3867080).

Almost surely, 2^66480804 is an apocalyptic number.

It is an amenable number.

66480804 is an abundant number, since it is smaller than the sum of its proper divisors (119139036).

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

66480804 is a wasteful number, since it uses less digits than its factorization.

66480804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47377 (or 47369 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 66480804 is about 8153.5761479243. The cubic root of 66480804 is about 405.1029642187.

The spelling of 66480804 in words is "sixty-six million, four hundred eighty thousand, eight hundred four".