111443661404 has 24 divisors (see below), whose sum is σ = 206044050240. Its totient is φ = 52655696576.

The previous prime is 111443661379. The next prime is 111443661437. The reversal of 111443661404 is 404166344111.

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, 10214987 + ... + 10225890.

It is an arithmetic number, because the mean of its divisors is an integer number (8585168760).

Almost surely, 2^111443661404 is an apocalyptic number.

It is an amenable number.

111443661404 is a deficient number, since it is larger than the sum of its proper divisors (94600388836).

111443661404 is a wasteful number, since it uses less digits than its factorization.

111443661404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20440957 (or 20440955 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 111443661404 in words is "one hundred eleven billion, four hundred forty-three million, six hundred sixty-one thousand, four hundred four".