128610166907 has 8 divisors (see below), whose sum is σ = 135453096960. Its totient is φ = 121774634280.

The previous prime is 128610166897. The next prime is 128610167003. The reversal of 128610166907 is 709661016821.

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 128610166907 - 2⁸ = 128610166651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128610166007) 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, 1813643 + ... + 1883220.

It is an arithmetic number, because the mean of its divisors is an integer number (16931637120).

Almost surely, 2^128610166907 is an apocalyptic number.

128610166907 is a deficient number, since it is larger than the sum of its proper divisors (6842930053).

128610166907 is a wasteful number, since it uses less digits than its factorization.

128610166907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3698713.

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 128610166907 in words is "one hundred twenty-eight billion, six hundred ten million, one hundred sixty-six thousand, nine hundred seven".