66362481472 has 56 divisors (see below), whose sum is σ = 151990836480. Its totient is φ = 28159449600.

The previous prime is 66362481467. The next prime is 66362481481. The reversal of 66362481472 is 27418426366.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688072 + ... + 778567.

It is an arithmetic number, because the mean of its divisors is an integer number (2714122080).

Almost surely, 2^66362481472 is an apocalyptic number.

It is an amenable number.

66362481472 is an abundant number, since it is smaller than the sum of its proper divisors (85628355008).

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

66362481472 is a wasteful number, since it uses less digits than its factorization.

66362481472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466759 (or 1466749 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 49.

The spelling of 66362481472 in words is "sixty-six billion, three hundred sixty-two million, four hundred eighty-one thousand, four hundred seventy-two".