380978565166 has 32 divisors (see below), whose sum is σ = 616567811328. Its totient is φ = 176101632960.

The previous prime is 380978565017. The next prime is 380978565167. The reversal of 380978565166 is 661565879083.

It is a junction number, because it is equal to n+sod(n) for n = 380978565098 and 380978565107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380978565167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 742140 + ... + 1145743.

It is an arithmetic number, because the mean of its divisors is an integer number (19267744104).

Almost surely, 2^380978565166 is an apocalyptic number.

380978565166 is a deficient number, since it is larger than the sum of its proper divisors (235589246162).

380978565166 is a wasteful number, since it uses less digits than its factorization.

380978565166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888056.

The product of its (nonzero) digits is 65318400, while the sum is 64.

The spelling of 380978565166 in words is "three hundred eighty billion, nine hundred seventy-eight million, five hundred sixty-five thousand, one hundred sixty-six".