111151420552 has 16 divisors (see below), whose sum is σ = 220668261660. Its totient is φ = 52306550784.

The previous prime is 111151420543. The next prime is 111151420571. The reversal of 111151420552 is 255024151111.

It can be written as a sum of positive squares in 2 ways, for example, as 107220882916 + 3930537636 = 327446^2 + 62694^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111151420552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408644793 + ... + 408645064.

Almost surely, 2^111151420552 is an apocalyptic number.

It is an amenable number.

111151420552 is a deficient number, since it is larger than the sum of its proper divisors (109516841108).

111151420552 is a wasteful number, since it uses less digits than its factorization.

111151420552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817289880 (or 817289876 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 28.

Adding to 111151420552 its reverse (255024151111), we get a palindrome (366175571663).

The spelling of 111151420552 in words is "one hundred eleven billion, one hundred fifty-one million, four hundred twenty thousand, five hundred fifty-two".