66736707073990 has 8 divisors (see below), whose sum is σ = 120126072733200. Its totient is φ = 26694682829592.

The previous prime is 66736707073963. The next prime is 66736707074047. The reversal of 66736707073990 is 9937070763766.

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 pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3336835353690 + ... + 3336835353709.

It is an arithmetic number, because the mean of its divisors is an integer number (15015759091650).

Almost surely, 2^{66736707073990} is an apocalyptic number.

66736707073990 is a deficient number, since it is larger than the sum of its proper divisors (53389365659210).

66736707073990 is a wasteful number, since it uses less digits than its factorization.

66736707073990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673670707406.

The product of its (nonzero) digits is 378071064, while the sum is 70.

The spelling of 66736707073990 in words is "sixty-six trillion, seven hundred thirty-six billion, seven hundred seven million, seventy-three thousand, nine hundred ninety".