67966935616 has 14 divisors (see below), whose sum is σ = 134871887990. Its totient is φ = 33983467776.

The previous prime is 67966935497. The next prime is 67966935623. The reversal of 67966935616 is 61653966976.

It can be written as a sum of positive squares in only one way, i.e., 67966575616 + 360000 = 260704^2 + 600^2 .

It is a Harshad number since it is a multiple of its sum of digits (64), and also a Moran number because the ratio is a prime number: 1061983369 = 67966935616 / (6 + 7 + 9 + 6 + 6 + 9 + 3 + 5 + 6 + 1 + 6).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530991621 + ... + 530991748.

It is an arithmetic number, because the mean of its divisors is an integer number (9633706285).

Almost surely, 2^67966935616 is an apocalyptic number.

It is an amenable number.

67966935616 is a deficient number, since it is larger than the sum of its proper divisors (66904952374).

67966935616 is a wasteful number, since it uses less digits than its factorization.

67966935616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061983381 (or 1061983371 counting only the distinct ones).

The product of its digits is 66134880, while the sum is 64.

The spelling of 67966935616 in words is "sixty-seven billion, nine hundred sixty-six million, nine hundred thirty-five thousand, six hundred sixteen".