66774070070 has 16 divisors (see below), whose sum is σ = 120207287088. Its totient is φ = 26706525600.

The previous prime is 66774070067. The next prime is 66774070081. The reversal of 66774070070 is 7007047766.

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 in 7 ways as a sum of consecutive naturals, for example, 296381 + ... + 470520.

It is an arithmetic number, because the mean of its divisors is an integer number (7512955443).

Almost surely, 2^66774070070 is an apocalyptic number.

66774070070 is a deficient number, since it is larger than the sum of its proper divisors (53433217018).

66774070070 is a wasteful number, since it uses less digits than its factorization.

66774070070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775615.

The product of its (nonzero) digits is 345744, while the sum is 44.

The spelling of 66774070070 in words is "sixty-six billion, seven hundred seventy-four million, seventy thousand, seventy".