66246446442 has 16 divisors (see below), whose sum is σ = 144537701472. Its totient is φ = 20074680720.

The previous prime is 66246446437. The next prime is 66246446443. The reversal of 66246446442 is 24464464266.

It is a junction number, because it is equal to n+sod(n) for n = 66246446391 and 66246446400.

It is not an unprimeable number, because it can be changed into a prime (66246446443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501866953 + ... + 501867084.

It is an arithmetic number, because the mean of its divisors is an integer number (9033606342).

Almost surely, 2^66246446442 is an apocalyptic number.

66246446442 is an abundant number, since it is smaller than the sum of its proper divisors (78291255030).

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

66246446442 is a wasteful number, since it uses less digits than its factorization.

66246446442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003734053.

The product of its digits is 5308416, while the sum is 48.

The spelling of 66246446442 in words is "sixty-six billion, two hundred forty-six million, four hundred forty-six thousand, four hundred forty-two".