2678169396366 has 12 divisors (see below), whose sum is σ = 5802700358832. Its totient is φ = 892723132116.

The previous prime is 2678169396359. The next prime is 2678169396367. The reversal of 2678169396366 is 6636939618762.

It is a happy number.

2678169396366 is a `hidden beast` number, since 2 + 6 + 78 + 169 + 39 + 6 + 366 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2678169396294 and 2678169396303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2678169396367) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74393594326 + ... + 74393594361.

It is an arithmetic number, because the mean of its divisors is an integer number (483558363236).

Almost surely, 2^{2678169396366} is an apocalyptic number.

2678169396366 is an abundant number, since it is smaller than the sum of its proper divisors (3124530962466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2678169396366 is a wasteful number, since it uses less digits than its factorization.

2678169396366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148787188695 (or 148787188692 counting only the distinct ones).

The product of its digits is 634894848, while the sum is 72.

The spelling of 2678169396366 in words is "two trillion, six hundred seventy-eight billion, one hundred sixty-nine million, three hundred ninety-six thousand, three hundred sixty-six".