66722227004 has 6 divisors (see below), whose sum is σ = 116763897264. Its totient is φ = 33361113500.

The previous prime is 66722226953. The next prime is 66722227037. The reversal of 66722227004 is 40072222766.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8340278372 + ... + 8340278379.

It is an arithmetic number, because the mean of its divisors is an integer number (19460649544).

Almost surely, 2^66722227004 is an apocalyptic number.

It is an amenable number.

66722227004 is a deficient number, since it is larger than the sum of its proper divisors (50041670260).

66722227004 is a wasteful number, since it uses less digits than its factorization.

66722227004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16680556755 (or 16680556753 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 38.

The spelling of 66722227004 in words is "sixty-six billion, seven hundred twenty-two million, two hundred twenty-seven thousand, four".