66746017382 has 8 divisors (see below), whose sum is σ = 109220755752. Its totient is φ = 30339098800.

The previous prime is 66746017379. The next prime is 66746017421. The reversal of 66746017382 is 28371064766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×66746017382² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66746017382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1516954919 + ... + 1516954962.

It is an arithmetic number, because the mean of its divisors is an integer number (13652594469).

Almost surely, 2^66746017382 is an apocalyptic number.

66746017382 is a deficient number, since it is larger than the sum of its proper divisors (42474738370).

66746017382 is a wasteful number, since it uses less digits than its factorization.

66746017382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033909894.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 66746017382 in words is "sixty-six billion, seven hundred forty-six million, seventeen thousand, three hundred eighty-two".