128165681760 has 96 divisors (see below), whose sum is σ = 408258234720. Its totient is φ = 33793486848.

The previous prime is 128165681747. The next prime is 128165681843. The reversal of 128165681760 is 67186561821.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1457347 + ... + 1542786.

It is an arithmetic number, because the mean of its divisors is an integer number (4252689945).

Almost surely, 2^128165681760 is an apocalyptic number.

128165681760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128165681760 is an abundant number, since it is smaller than the sum of its proper divisors (280092552960).

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

128165681760 is a wasteful number, since it uses less digits than its factorization.

128165681760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000240 (or 3000232 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 128165681760 in words is "one hundred twenty-eight billion, one hundred sixty-five million, six hundred eighty-one thousand, seven hundred sixty".