128167244663 has 2 divisors, whose sum is σ = 128167244664. Its totient is φ = 128167244662.

The previous prime is 128167244641. The next prime is 128167244687. The reversal of 128167244663 is 366442761821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128167244663 - 2²² = 128163050359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128167844663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64083622331 + 64083622332.

It is an arithmetic number, because the mean of its divisors is an integer number (64083622332).

Almost surely, 2^128167244663 is an apocalyptic number.

128167244663 is a deficient number, since it is larger than the sum of its proper divisors (1).

128167244663 is an equidigital number, since it uses as much as digits as its factorization.

128167244663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 50.

The spelling of 128167244663 in words is "one hundred twenty-eight billion, one hundred sixty-seven million, two hundred forty-four thousand, six hundred sixty-three".