128277133168 has 10 divisors (see below), whose sum is σ = 248536945544. Its totient is φ = 64138566576.

The previous prime is 128277133139. The next prime is 128277133169. The reversal of 128277133168 is 861331772821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128277133169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4008660396 + ... + 4008660427.

Almost surely, 2^128277133168 is an apocalyptic number.

It is an amenable number.

128277133168 is a deficient number, since it is larger than the sum of its proper divisors (120259812376).

128277133168 is an equidigital number, since it uses as much as digits as its factorization.

128277133168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8017320831 (or 8017320825 counting only the distinct ones).

The product of its digits is 677376, while the sum is 49.

The spelling of 128277133168 in words is "one hundred twenty-eight billion, two hundred seventy-seven million, one hundred thirty-three thousand, one hundred sixty-eight".