66582713252828 has 6 divisors (see below), whose sum is σ = 116519748192456. Its totient is φ = 33291356626412.

The previous prime is 66582713252827. The next prime is 66582713252857. The reversal of 66582713252828 is 82825231728566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66582713252827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8322839156600 + ... + 8322839156607.

It is an arithmetic number, because the mean of its divisors is an integer number (19419958032076).

Almost surely, 2^{66582713252828} is an apocalyptic number.

It is an amenable number.

66582713252828 is a deficient number, since it is larger than the sum of its proper divisors (49937034939628).

66582713252828 is a wasteful number, since it uses less digits than its factorization.

66582713252828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16645678313211 (or 16645678313209 counting only the distinct ones).

The product of its digits is 154828800, while the sum is 65.

The spelling of 66582713252828 in words is "sixty-six trillion, five hundred eighty-two billion, seven hundred thirteen million, two hundred fifty-two thousand, eight hundred twenty-eight".