111443661366 has 16 divisors (see below), whose sum is σ = 224306989104. Its totient is φ = 36911276064.

The previous prime is 111443661353. The next prime is 111443661367. The reversal of 111443661366 is 663166344111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111443661367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59151745 + ... + 59153628.

It is an arithmetic number, because the mean of its divisors is an integer number (14019186819).

Almost surely, 2^111443661366 is an apocalyptic number.

111443661366 is an abundant number, since it is smaller than the sum of its proper divisors (112863327738).

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

111443661366 is a wasteful number, since it uses less digits than its factorization.

111443661366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118305535.

The product of its digits is 186624, while the sum is 42.

The spelling of 111443661366 in words is "one hundred eleven billion, four hundred forty-three million, six hundred sixty-one thousand, three hundred sixty-six".