3666034778 has 16 divisors (see below), whose sum is σ = 6355247040. Its totient is φ = 1553503776.

The previous prime is 3666034759. The next prime is 3666034787. The reversal of 3666034778 is 8774306663.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1469876 + ... + 1472367.

It is an arithmetic number, because the mean of its divisors is an integer number (397202940).

Almost surely, 2^3666034778 is an apocalyptic number.

3666034778 is a deficient number, since it is larger than the sum of its proper divisors (2689212262).

3666034778 is a wasteful number, since it uses less digits than its factorization.

3666034778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2942341.

The product of its (nonzero) digits is 3048192, while the sum is 50.

The square root of 3666034778 is about 60547.7892081949. The cubic root of 3666034778 is about 1541.9330840916.

The spelling of 3666034778 in words is "three billion, six hundred sixty-six million, thirty-four thousand, seven hundred seventy-eight".