66327446240 has 96 divisors (see below), whose sum is σ = 176458383360. Its totient is φ = 23341017600.

The previous prime is 66327446203. The next prime is 66327446281. The reversal of 66327446240 is 4264472366.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 66327446191 and 66327446200.

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 15 ways as a sum of consecutive naturals, for example, 553280 + ... + 662399.

It is an arithmetic number, because the mean of its divisors is an integer number (1838108160).

Almost surely, 2^66327446240 is an apocalyptic number.

It is an amenable number.

66327446240 is an abundant number, since it is smaller than the sum of its proper divisors (110130937120).

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

66327446240 is a wasteful number, since it uses less digits than its factorization.

66327446240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215736 (or 1215728 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 44.

The spelling of 66327446240 in words is "sixty-six billion, three hundred twenty-seven million, four hundred forty-six thousand, two hundred forty".