128800692106 has 16 divisors (see below), whose sum is σ = 195166033920. Its totient is φ = 63747658800.

The previous prime is 128800692091. The next prime is 128800692157. The reversal of 128800692106 is 601296008821.

It is a happy number.

It is a super-2 number, since 2×128800692106² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466045 + ... + 689056.

It is an arithmetic number, because the mean of its divisors is an integer number (12197877120).

Almost surely, 2^128800692106 is an apocalyptic number.

128800692106 is a deficient number, since it is larger than the sum of its proper divisors (66365341814).

128800692106 is a wasteful number, since it uses less digits than its factorization.

128800692106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155669.

The product of its (nonzero) digits is 82944, while the sum is 43.

The spelling of 128800692106 in words is "one hundred twenty-eight billion, eight hundred million, six hundred ninety-two thousand, one hundred six".