66800741340 has 24 divisors (see below), whose sum is σ = 187042075920. Its totient is φ = 17813531008.

The previous prime is 66800741333. The next prime is 66800741351. The reversal of 66800741340 is 4314700866.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556672785 + ... + 556672904.

It is an arithmetic number, because the mean of its divisors is an integer number (7793419830).

Almost surely, 2^66800741340 is an apocalyptic number.

66800741340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66800741340 is an abundant number, since it is smaller than the sum of its proper divisors (120241334580).

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

66800741340 is a wasteful number, since it uses less digits than its factorization.

66800741340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113345701 (or 1113345699 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 66800741340 in words is "sixty-six billion, eight hundred million, seven hundred forty-one thousand, three hundred forty".