66667333340 has 48 divisors (see below), whose sum is σ = 148423505664. Its totient is φ = 25109222400.

The previous prime is 66667333321. The next prime is 66667333351. The reversal of 66667333340 is 4333376666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1430141 + ... + 1476020.

It is an arithmetic number, because the mean of its divisors is an integer number (3092156368).

Almost surely, 2^66667333340 is an apocalyptic number.

It is an amenable number.

66667333340 is an abundant number, since it is smaller than the sum of its proper divisors (81756172324).

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

66667333340 is a wasteful number, since it uses less digits than its factorization.

66667333340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906238 (or 2906236 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 47.

The spelling of 66667333340 in words is "sixty-six billion, six hundred sixty-seven million, three hundred thirty-three thousand, three hundred forty".