66727333340 has 12 divisors (see below), whose sum is σ = 140127400056. Its totient is φ = 26690933328.

The previous prime is 66727333333. The next prime is 66727333357. The reversal of 66727333340 is 4333372766.

It is a happy number.

66727333340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 66727333291 and 66727333300.

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, 1668183314 + ... + 1668183353.

It is an arithmetic number, because the mean of its divisors is an integer number (11677283338).

Almost surely, 2^66727333340 is an apocalyptic number.

It is an amenable number.

66727333340 is an abundant number, since it is smaller than the sum of its proper divisors (73400066716).

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

66727333340 is a wasteful number, since it uses less digits than its factorization.

66727333340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336366676 (or 3336366674 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 44.

The spelling of 66727333340 in words is "sixty-six billion, seven hundred twenty-seven million, three hundred thirty-three thousand, three hundred forty".