128316532532 has 12 divisors (see below), whose sum is σ = 224593736640. Its totient is φ = 64146893496.

The previous prime is 128316532507. The next prime is 128316532573. The reversal of 128316532532 is 235235613821.

It is a self number, because there is not a number n which added to its sum of digits gives 128316532532.

It is a congruent number.

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, 2817782 + ... + 2862957.

It is an arithmetic number, because the mean of its divisors is an integer number (18716144720).

Almost surely, 2^128316532532 is an apocalyptic number.

It is an amenable number.

128316532532 is a deficient number, since it is larger than the sum of its proper divisors (96277204108).

128316532532 is a wasteful number, since it uses less digits than its factorization.

128316532532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5686390 (or 5686388 counting only the distinct ones).

The product of its digits is 259200, while the sum is 41.

The spelling of 128316532532 in words is "one hundred twenty-eight billion, three hundred sixteen million, five hundred thirty-two thousand, five hundred thirty-two".