128316204168206 has 16 divisors (see below), whose sum is σ = 193596920694000. Its totient is φ = 63783935761728.

The previous prime is 128316204168203. The next prime is 128316204168221. The reversal of 128316204168206 is 602861402613821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128316204168203) 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, 2939156 + ... + 16287143.

It is an arithmetic number, because the mean of its divisors is an integer number (12099807543375).

Almost surely, 2^{128316204168206} is an apocalyptic number.

128316204168206 is a deficient number, since it is larger than the sum of its proper divisors (65280716525794).

128316204168206 is a wasteful number, since it uses less digits than its factorization.

128316204168206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19245763.

The product of its (nonzero) digits is 1327104, while the sum is 50.

The spelling of 128316204168206 in words is "one hundred twenty-eight trillion, three hundred sixteen billion, two hundred four million, one hundred sixty-eight thousand, two hundred six".