129066670 has 8 divisors (see below), whose sum is σ = 232320024. Its totient is φ = 51626664.

The previous prime is 129066659. The next prime is 129066683. The reversal of 129066670 is 76660921.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6453324 + ... + 6453343.

It is an arithmetic number, because the mean of its divisors is an integer number (29040003).

Almost surely, 2^129066670 is an apocalyptic number.

129066670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129066670 is a deficient number, since it is larger than the sum of its proper divisors (103253354).

129066670 is a wasteful number, since it uses less digits than its factorization.

129066670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12906674.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 129066670 is about 11360.7512955790. The cubic root of 129066670 is about 505.3644658446.

The spelling of 129066670 in words is "one hundred twenty-nine million, sixty-six thousand, six hundred seventy".