1388183187166 has 16 divisors (see below), whose sum is σ = 2160599421456. Its totient is φ = 668370168576.

The previous prime is 1388183187143. The next prime is 1388183187221. The reversal of 1388183187166 is 6617813818831.

It is a super-3 number, since 3×1388183187166³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96689896 + ... + 96704251.

It is an arithmetic number, because the mean of its divisors is an integer number (135037463841).

Almost surely, 2^{1388183187166} is an apocalyptic number.

1388183187166 is a deficient number, since it is larger than the sum of its proper divisors (772416234290).

1388183187166 is a wasteful number, since it uses less digits than its factorization.

1388183187166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193394283.

The product of its digits is 9289728, while the sum is 61.

The spelling of 1388183187166 in words is "one trillion, three hundred eighty-eight billion, one hundred eighty-three million, one hundred eighty-seven thousand, one hundred sixty-six".