128111134568552 has 16 divisors (see below), whose sum is σ = 241143040266660. Its totient is φ = 63806323830784.

The previous prime is 128111134568537. The next prime is 128111134568569. The reversal of 128111134568552 is 255865431111821.

It can be written as a sum of positive squares in 2 ways, for example, as 84884270386756 + 43226864181796 = 9213266^2 + 6574714^2 .

It is a junction number, because it is equal to n+sod(n) for n = 128111134568494 and 128111134568503.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31155429503 + ... + 31155433614.

Almost surely, 2^{128111134568552} is an apocalyptic number.

It is an amenable number.

128111134568552 is a deficient number, since it is larger than the sum of its proper divisors (113031905698108).

128111134568552 is a wasteful number, since it uses less digits than its factorization.

128111134568552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62310863380 (or 62310863376 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 53.

The spelling of 128111134568552 in words is "one hundred twenty-eight trillion, one hundred eleven billion, one hundred thirty-four million, five hundred sixty-eight thousand, five hundred fifty-two".