111487555542 has 16 divisors (see below), whose sum is σ = 243245575872. Its totient is φ = 33784107720.

The previous prime is 111487555541. The next prime is 111487555547. The reversal of 111487555542 is 245555784111.

It is a junction number, because it is equal to n+sod(n) for n = 111487555491 and 111487555500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111487555541) 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, 844602628 + ... + 844602759.

It is an arithmetic number, because the mean of its divisors is an integer number (15202848492).

Almost surely, 2^111487555542 is an apocalyptic number.

111487555542 is an abundant number, since it is smaller than the sum of its proper divisors (131758020330).

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

111487555542 is a wasteful number, since it uses less digits than its factorization.

111487555542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689205403.

The product of its digits is 1120000, while the sum is 48.

The spelling of 111487555542 in words is "one hundred eleven billion, four hundred eighty-seven million, five hundred fifty-five thousand, five hundred forty-two".