66700733340 has 24 divisors (see below), whose sum is σ = 186762053520. Its totient is φ = 17786862208.

The previous prime is 66700733291. The next prime is 66700733353. The reversal of 66700733340 is 4333700766.

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, 555839385 + ... + 555839504.

It is an arithmetic number, because the mean of its divisors is an integer number (7781752230).

Almost surely, 2^66700733340 is an apocalyptic number.

66700733340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66700733340 is an abundant number, since it is smaller than the sum of its proper divisors (120061320180).

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

66700733340 is a wasteful number, since it uses less digits than its factorization.

66700733340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111678901 (or 1111678899 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 39.

The spelling of 66700733340 in words is "sixty-six billion, seven hundred million, seven hundred thirty-three thousand, three hundred forty".