66875484 has 96 divisors (see below), whose sum is σ = 180182016. Its totient is φ = 19123200.

The previous prime is 66875461. The next prime is 66875491. The reversal of 66875484 is 48457866.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 400369 + ... + 400535.

It is an arithmetic number, because the mean of its divisors is an integer number (1876896).

Almost surely, 2^66875484 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66875484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90091008).

66875484 is an abundant number, since it is smaller than the sum of its proper divisors (113306532).

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

66875484 is a wasteful number, since it uses less digits than its factorization.

66875484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355 (or 353 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 48.

The square root of 66875484 is about 8177.7432094680. The cubic root of 66875484 is about 405.9030481855.

The spelling of 66875484 in words is "sixty-six million, eight hundred seventy-five thousand, four hundred eighty-four".