128258650126552 has 64 divisors (see below), whose sum is σ = 265066646090400. Its totient is φ = 57695140823040.

The previous prime is 128258650126549. The next prime is 128258650126559. The reversal of 128258650126552 is 255621056852821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128258650126559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155909524 + ... + 156730012.

Almost surely, 2^{128258650126552} is an apocalyptic number.

It is an amenable number.

128258650126552 is an abundant number, since it is smaller than the sum of its proper divisors (136807995963848).

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

128258650126552 is a wasteful number, since it uses less digits than its factorization.

128258650126552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838916 (or 838912 counting only the distinct ones).

The product of its (nonzero) digits is 23040000, while the sum is 58.

The spelling of 128258650126552 in words is "one hundred twenty-eight trillion, two hundred fifty-eight billion, six hundred fifty million, one hundred twenty-six thousand, five hundred fifty-two".