1678103767066 has 8 divisors (see below), whose sum is σ = 2665223630100. Its totient is φ = 789695890368.

The previous prime is 1678103767063. The next prime is 1678103767091. The reversal of 1678103767066 is 6607673018761.

It can be written as a sum of positive squares in 2 ways, for example, as 1621728387841 + 56375379225 = 1273471^2 + 237435^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1678103767066.

It is not an unprimeable number, because it can be changed into a prime (1678103767061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24677996541 + ... + 24677996608.

Almost surely, 2^{1678103767066} is an apocalyptic number.

1678103767066 is a deficient number, since it is larger than the sum of its proper divisors (987119863034).

1678103767066 is a wasteful number, since it uses less digits than its factorization.

1678103767066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49355993168.

The product of its (nonzero) digits is 10668672, while the sum is 58.

The spelling of 1678103767066 in words is "one trillion, six hundred seventy-eight billion, one hundred three million, seven hundred sixty-seven thousand, sixty-six".