3666745399758 has 32 divisors (see below), whose sum is σ = 8381245561344. Its totient is φ = 1047627390432.

The previous prime is 3666745399741. The next prime is 3666745399771. The reversal of 3666745399758 is 8579935476663.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2783416 + ... + 3883412.

It is an arithmetic number, because the mean of its divisors is an integer number (261913923792).

Almost surely, 2^{3666745399758} is an apocalyptic number.

3666745399758 is an abundant number, since it is smaller than the sum of its proper divisors (4714500161586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3666745399758 is a wasteful number, since it uses less digits than its factorization.

3666745399758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179376.

The product of its digits is 6172588800, while the sum is 78.

The spelling of 3666745399758 in words is "three trillion, six hundred sixty-six billion, seven hundred forty-five million, three hundred ninety-nine thousand, seven hundred fifty-eight".