66044402834 has 4 divisors (see below), whose sum is σ = 99066604254. Its totient is φ = 33022201416.

The previous prime is 66044402803. The next prime is 66044402843. The reversal of 66044402834 is 43820444066.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 65512962025 + 531440809 = 255955^2 + 23053^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66044402791 and 66044402800.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16511100707 + ... + 16511100710.

Almost surely, 2^66044402834 is an apocalyptic number.

66044402834 is a deficient number, since it is larger than the sum of its proper divisors (33022201420).

66044402834 is a wasteful number, since it uses less digits than its factorization.

66044402834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33022201419.

The product of its (nonzero) digits is 442368, while the sum is 41.

The spelling of 66044402834 in words is "sixty-six billion, forty-four million, four hundred two thousand, eight hundred thirty-four".