66086629 has 16 divisors (see below), whose sum is σ = 77696640. Its totient is φ = 55031040.

The previous prime is 66086627. The next prime is 66086639. The reversal of 66086629 is 92668066.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 66086629 - 2¹ = 66086627 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66086627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117102 + ... + 117664.

It is an arithmetic number, because the mean of its divisors is an integer number (4856040).

Almost surely, 2^66086629 is an apocalyptic number.

It is an amenable number.

66086629 is a deficient number, since it is larger than the sum of its proper divisors (11610011).

66086629 is a wasteful number, since it uses less digits than its factorization.

66086629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 66086629 is about 8129.3683026420. The cubic root of 66086629 is about 404.3007371746.

The spelling of 66086629 in words is "sixty-six million, eighty-six thousand, six hundred twenty-nine".