66864490934 has 8 divisors (see below), whose sum is σ = 100303026240. Its totient is φ = 33430148856.

The previous prime is 66864490909. The next prime is 66864490943. The reversal of 66864490934 is 43909446866.

It is a happy number.

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, 1008134 + ... + 1072409.

It is an arithmetic number, because the mean of its divisors is an integer number (12537878280).

Almost surely, 2^66864490934 is an apocalyptic number.

66864490934 is a deficient number, since it is larger than the sum of its proper divisors (33438535306).

66864490934 is a wasteful number, since it uses less digits than its factorization.

66864490934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096614.

The product of its (nonzero) digits is 26873856, while the sum is 59.

The spelling of 66864490934 in words is "sixty-six billion, eight hundred sixty-four million, four hundred ninety thousand, nine hundred thirty-four".