111487555547 has 2 divisors, whose sum is σ = 111487555548. Its totient is φ = 111487555546.

The previous prime is 111487555541. The next prime is 111487555561. The reversal of 111487555547 is 745555784111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111487555547 - 2¹⁶ = 111487490011 is a prime.

It is not a weakly prime, because it can be changed into another prime (111487555541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55743777773 + 55743777774.

It is an arithmetic number, because the mean of its divisors is an integer number (55743777774).

Almost surely, 2^111487555547 is an apocalyptic number.

111487555547 is a deficient number, since it is larger than the sum of its proper divisors (1).

111487555547 is an equidigital number, since it uses as much as digits as its factorization.

111487555547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3920000, while the sum is 53.

The spelling of 111487555547 in words is "one hundred eleven billion, four hundred eighty-seven million, five hundred fifty-five thousand, five hundred forty-seven".