64169906 has 8 divisors (see below), whose sum is σ = 96947760. Its totient is φ = 31853988.

The previous prime is 64169893. The next prime is 64169921. The reversal of 64169906 is 60996146.

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

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, 115136 + ... + 115691.

It is an arithmetic number, because the mean of its divisors is an integer number (12118470).

Almost surely, 2^64169906 is an apocalyptic number.

64169906 is a deficient number, since it is larger than the sum of its proper divisors (32777854).

64169906 is a wasteful number, since it uses less digits than its factorization.

64169906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230968.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 64169906 is about 8010.6120864763. The cubic root of 64169906 is about 400.3536580561.

The spelling of 64169906 in words is "sixty-four million, one hundred sixty-nine thousand, nine hundred six".