616666733332 has 12 divisors (see below), whose sum is σ = 1162179612916. Its totient is φ = 284615415360.

The previous prime is 616666733317. The next prime is 616666733381. The reversal of 616666733332 is 233337666616.

It can be written as a sum of positive squares in 2 ways, for example, as 230595881616 + 386070851716 = 480204^2 + 621346^2 .

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 11858975641 = 616666733332 / (6 + 1 + 6 + 6 + 6 + 6 + 7 + 3 + 3 + 3 + 3 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 616666733332.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5929487769 + ... + 5929487872.

Almost surely, 2^616666733332 is an apocalyptic number.

It is an amenable number.

616666733332 is a deficient number, since it is larger than the sum of its proper divisors (545512879584).

616666733332 is a wasteful number, since it uses less digits than its factorization.

616666733332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11858975658 (or 11858975656 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 52.

The spelling of 616666733332 in words is "six hundred sixteen billion, six hundred sixty-six million, seven hundred thirty-three thousand, three hundred thirty-two".