111145719852 has 18 divisors (see below), whose sum is σ = 280951680828. Its totient is φ = 37048573272.

The previous prime is 111145719829. The next prime is 111145719859. The reversal of 111145719852 is 258917541111.

111145719852 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 457 + 198 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 111145719798 and 111145719807.

It is not an unprimeable number, because it can be changed into a prime (111145719859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1543690518 + ... + 1543690589.

Almost surely, 2^111145719852 is an apocalyptic number.

111145719852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111145719852 is an abundant number, since it is smaller than the sum of its proper divisors (169805960976).

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

111145719852 is a wasteful number, since it uses less digits than its factorization.

111145719852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087381117 (or 3087381112 counting only the distinct ones).

The product of its digits is 100800, while the sum is 45.

The spelling of 111145719852 in words is "one hundred eleven billion, one hundred forty-five million, seven hundred nineteen thousand, eight hundred fifty-two".