3555434660 has 48 divisors (see below), whose sum is σ = 7877654400. Its totient is φ = 1344190464.

The previous prime is 3555434657. The next prime is 3555434693. The reversal of 3555434660 is 664345553.

3555434660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3555434660² = 25282231243058631200, which contains 22 as substring.

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, 156164 + ... + 177476.

It is an arithmetic number, because the mean of its divisors is an integer number (164117800).

Almost surely, 2^3555434660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3555434660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3938827200).

3555434660 is an abundant number, since it is smaller than the sum of its proper divisors (4322219740).

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

3555434660 is a wasteful number, since it uses less digits than its factorization.

3555434660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21780 (or 21778 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 41.

The square root of 3555434660 is about 59627.4656513255. The cubic root of 3555434660 is about 1526.2683576837.

The spelling of 3555434660 in words is "three billion, five hundred fifty-five million, four hundred thirty-four thousand, six hundred sixty".