128504166157 has 8 divisors (see below), whose sum is σ = 134228575296. Its totient is φ = 122791196352.

The previous prime is 128504166151. The next prime is 128504166163. The reversal of 128504166157 is 751661405821.

It is an interprime number because it is at equal distance from previous prime (128504166151) and next prime (128504166163).

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

It is a cyclic number.

It is not a de Polignac number, because 128504166157 - 2¹⁵ = 128504133389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128504166151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2836863 + ... + 2881804.

It is an arithmetic number, because the mean of its divisors is an integer number (16778571912).

Almost surely, 2^128504166157 is an apocalyptic number.

It is an amenable number.

128504166157 is a deficient number, since it is larger than the sum of its proper divisors (5724409139).

128504166157 is an equidigital number, since it uses as much as digits as its factorization.

128504166157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5719667.

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

The spelling of 128504166157 in words is "one hundred twenty-eight billion, five hundred four million, one hundred sixty-six thousand, one hundred fifty-seven".