128507451166 has 8 divisors (see below), whose sum is σ = 193298117040. Its totient is φ = 64074745488.

The previous prime is 128507451097. The next prime is 128507451167. The reversal of 128507451166 is 661154705821.

128507451166 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128507451167) 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, 89489151 + ... + 89490586.

It is an arithmetic number, because the mean of its divisors is an integer number (24162264630).

Almost surely, 2^128507451166 is an apocalyptic number.

128507451166 is a deficient number, since it is larger than the sum of its proper divisors (64790665874).

128507451166 is a wasteful number, since it uses less digits than its factorization.

128507451166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178980098.

The product of its (nonzero) digits is 403200, while the sum is 46.

The spelling of 128507451166 in words is "one hundred twenty-eight billion, five hundred seven million, four hundred fifty-one thousand, one hundred sixty-six".