188168126404 has 6 divisors (see below), whose sum is σ = 329294221214. Its totient is φ = 94084063200.

The previous prime is 188168126383. The next prime is 188168126411. The reversal of 188168126404 is 404621861881.

It can be written as a sum of positive squares in only one way, i.e., 160602165504 + 27565960900 = 400752^2 + 166030^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23521015797 + ... + 23521015804.

Almost surely, 2^188168126404 is an apocalyptic number.

It is an amenable number.

188168126404 is a deficient number, since it is larger than the sum of its proper divisors (141126094810).

188168126404 is a wasteful number, since it uses less digits than its factorization.

188168126404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47042031605 (or 47042031603 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 49.

The spelling of 188168126404 in words is "one hundred eighty-eight billion, one hundred sixty-eight million, one hundred twenty-six thousand, four hundred four".