4531661660 has 24 divisors (see below), whose sum is σ = 9521048880. Its totient is φ = 1811796224.

The previous prime is 4531661657. The next prime is 4531661669. The reversal of 4531661660 is 661661354.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4531661669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10634 + ... + 95793.

It is an arithmetic number, because the mean of its divisors is an integer number (396710370).

Almost surely, 2^4531661660 is an apocalyptic number.

It is an amenable number.

4531661660 is an abundant number, since it is smaller than the sum of its proper divisors (4989387220).

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

4531661660 is a wasteful number, since it uses less digits than its factorization.

4531661660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108565 (or 108563 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 4531661660 is about 67317.6177534529. The cubic root of 4531661660 is about 1654.8265971425.

The spelling of 4531661660 in words is "four billion, five hundred thirty-one million, six hundred sixty-one thousand, six hundred sixty".