5331621660 has 24 divisors (see below), whose sum is σ = 14928540816. Its totient is φ = 1421765760.

The previous prime is 5331621653. The next prime is 5331621683. The reversal of 5331621660 is 661261335.

It is a congruent number.

It is an unprimeable number.

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, 44430121 + ... + 44430240.

It is an arithmetic number, because the mean of its divisors is an integer number (622022534).

Almost surely, 2^5331621660 is an apocalyptic number.

It is an amenable number.

5331621660 is an abundant number, since it is smaller than the sum of its proper divisors (9596919156).

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

5331621660 is a wasteful number, since it uses less digits than its factorization.

5331621660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88860373 (or 88860371 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 5331621660 is about 73017.9543674020. The cubic root of 5331621660 is about 1746.9739989252.

Adding to 5331621660 its reverse (661261335), we get a palindrome (5992882995).

The spelling of 5331621660 in words is "five billion, three hundred thirty-one million, six hundred twenty-one thousand, six hundred sixty".