128147406558 has 8 divisors (see below), whose sum is σ = 256294813128. Its totient is φ = 42715802184.

The previous prime is 128147406551. The next prime is 128147406601. The reversal of 128147406558 is 855604741821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

128147406558 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 128147406558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128147406551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10678950541 + ... + 10678950552.

It is an arithmetic number, because the mean of its divisors is an integer number (32036851641).

Almost surely, 2^128147406558 is an apocalyptic number.

128147406558 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128147406558 is a wasteful number, since it uses less digits than its factorization.

128147406558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21357901098.

The product of its (nonzero) digits is 2150400, while the sum is 51.

The spelling of 128147406558 in words is "one hundred twenty-eight billion, one hundred forty-seven million, four hundred six thousand, five hundred fifty-eight".