3554445120666 has 64 divisors (see below), whose sum is σ = 8221643337600. Its totient is φ = 1012473282560.

The previous prime is 3554445120659. The next prime is 3554445120703. The reversal of 3554445120666 is 6660215444553.

3554445120666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1093191 + ... + 2881658.

It is an arithmetic number, because the mean of its divisors is an integer number (128463177150).

Almost surely, 2^{3554445120666} is an apocalyptic number.

3554445120666 is an abundant number, since it is smaller than the sum of its proper divisors (4667198216934).

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

3554445120666 is a wasteful number, since it uses less digits than its factorization.

3554445120666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3975679.

The product of its (nonzero) digits is 10368000, while the sum is 51.

The spelling of 3554445120666 in words is "three trillion, five hundred fifty-four billion, four hundred forty-five million, one hundred twenty thousand, six hundred sixty-six".