111443661354 has 16 divisors (see below), whose sum is σ = 225940574592. Its totient is φ = 36639011808.

The previous prime is 111443661353. The next prime is 111443661367. The reversal of 111443661354 is 453166344111.

It is a happy number.

111443661354 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×111443661354² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111443661353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127218354 + ... + 127219229.

It is an arithmetic number, because the mean of its divisors is an integer number (14121285912).

Almost surely, 2^111443661354 is an apocalyptic number.

111443661354 is an abundant number, since it is smaller than the sum of its proper divisors (114496913238).

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

111443661354 is a wasteful number, since it uses less digits than its factorization.

111443661354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254437661.

The product of its digits is 103680, while the sum is 39.

The spelling of 111443661354 in words is "one hundred eleven billion, four hundred forty-three million, six hundred sixty-one thousand, three hundred fifty-four".