129040166290 has 32 divisors (see below), whose sum is σ = 265494879360. Its totient is φ = 44235538944.

The previous prime is 129040166273. The next prime is 129040166329. The reversal of 129040166290 is 92661040921.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327714 + ... + 604546.

It is an arithmetic number, because the mean of its divisors is an integer number (8296714980).

Almost surely, 2^129040166290 is an apocalyptic number.

129040166290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129040166290 is an abundant number, since it is smaller than the sum of its proper divisors (136454713070).

129040166290 is a wasteful number, since it uses less digits than its factorization.

129040166290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283506.

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 129040166290 in words is "one hundred twenty-nine billion, forty million, one hundred sixty-six thousand, two hundred ninety".