67665676705 has 16 divisors (see below), whose sum is σ = 88619759424. Its totient is φ = 49189602880.

The previous prime is 67665676679. The next prime is 67665676739. The reversal of 67665676705 is 50767656676.

It is not a de Polignac number, because 67665676705 - 2⁹ = 67665676193 is a prime.

It is a Duffinian 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, 146662 + ... + 396031.

It is an arithmetic number, because the mean of its divisors is an integer number (5538734964).

Almost surely, 2^67665676705 is an apocalyptic number.

It is an amenable number.

67665676705 is a deficient number, since it is larger than the sum of its proper divisors (20954082719).

67665676705 is a wasteful number, since it uses less digits than its factorization.

67665676705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544976.

The product of its (nonzero) digits is 66679200, while the sum is 61.

The spelling of 67665676705 in words is "sixty-seven billion, six hundred sixty-five million, six hundred seventy-six thousand, seven hundred five".