1770978344066 has 16 divisors (see below), whose sum is σ = 2696253666144. Its totient is φ = 872228469024.

The previous prime is 1770978344059. The next prime is 1770978344071. The reversal of 1770978344066 is 6604438790771.

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, 2384621 + ... + 3037823.

It is an arithmetic number, because the mean of its divisors is an integer number (168515854134).

Almost surely, 2^{1770978344066} is an apocalyptic number.

1770978344066 is a deficient number, since it is larger than the sum of its proper divisors (925275322078).

1770978344066 is a wasteful number, since it uses less digits than its factorization.

1770978344066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673505.

The product of its (nonzero) digits is 42674688, while the sum is 62.

The spelling of 1770978344066 in words is "one trillion, seven hundred seventy billion, nine hundred seventy-eight million, three hundred forty-four thousand, sixty-six".