3666078906893 has 10 divisors (see below), whose sum is σ = 3971574816774. Its totient is φ = 3384072810768.

The previous prime is 3666078906883. The next prime is 3666078907039. The reversal of 3666078906893 is 3986098706663.

3666078906893 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 2908242497449 + 757836409444 = 1705357^2 + 870538^2 .

It is not a de Polignac number, because 3666078906893 - 2²² = 3666074712589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666078906803) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 64151246 + ... + 64208367.

Almost surely, 2^{3666078906893} is an apocalyptic number.

It is an amenable number.

3666078906893 is a deficient number, since it is larger than the sum of its proper divisors (305495909881).

3666078906893 is an frugal number, since it uses more digits than its factorization.

3666078906893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128359665 (or 128359626 counting only the distinct ones).

The product of its (nonzero) digits is 423263232, while the sum is 71.

The spelling of 3666078906893 in words is "three trillion, six hundred sixty-six billion, seventy-eight million, nine hundred six thousand, eight hundred ninety-three".