5661859234320 has 480 divisors, whose sum is σ = 20845872028800. Its totient is φ = 1424203886592.

The previous prime is 5661859234261. The next prime is 5661859234351. The reversal of 5661859234320 is 234329581665.

It is a happy number.

5661859234320 is a `hidden beast` number, since 5 + 6 + 6 + 1 + 8 + 592 + 3 + 43 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 86027986 + ... + 86093774.

It is an arithmetic number, because the mean of its divisors is an integer number (43428900060).

Almost surely, 2^{5661859234320} 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 5661859234320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10422936014400).

5661859234320 is an abundant number, since it is smaller than the sum of its proper divisors (15184012794480).

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

5661859234320 is a wasteful number, since it uses less digits than its factorization.

5661859234320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66069 (or 66051 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 54.

The spelling of 5661859234320 in words is "five trillion, six hundred sixty-one billion, eight hundred fifty-nine million, two hundred thirty-four thousand, three hundred twenty".