66446484 has 24 divisors (see below), whose sum is σ = 166968480. Its totient is φ = 20445024.

The previous prime is 66446473. The next prime is 66446503. The reversal of 66446484 is 48464466.

It is a happy number.

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, 212814 + ... + 213125.

It is an arithmetic number, because the mean of its divisors is an integer number (6957020).

Almost surely, 2^66446484 is an apocalyptic number.

It is an amenable number.

66446484 is an abundant number, since it is smaller than the sum of its proper divisors (100521996).

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

66446484 is a wasteful number, since it uses less digits than its factorization.

66446484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425959 (or 425957 counting only the distinct ones).

The product of its digits is 442368, while the sum is 42.

The square root of 66446484 is about 8151.4712782417. The cubic root of 66446484 is about 405.0332422036.

The spelling of 66446484 in words is "sixty-six million, four hundred forty-six thousand, four hundred eighty-four".