6599122656 has 192 divisors, whose sum is σ = 20302184448. Its totient is φ = 1837997568.

The previous prime is 6599122633. The next prime is 6599122657. The reversal of 6599122656 is 6562219956.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6599122599 and 6599122608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6599122657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4636761 + ... + 4638183.

It is an arithmetic number, because the mean of its divisors is an integer number (105740544).

Almost surely, 2^6599122656 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 6599122656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10151092224).

6599122656 is an abundant number, since it is smaller than the sum of its proper divisors (13703061792).

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

6599122656 is a wasteful number, since it uses less digits than its factorization.

6599122656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613 (or 1605 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 51.

The square root of 6599122656 is about 81234.9841878485. The cubic root of 6599122656 is about 1875.6943354163.

The spelling of 6599122656 in words is "six billion, five hundred ninety-nine million, one hundred twenty-two thousand, six hundred fifty-six".