5266966656 has 256 divisors, whose sum is σ = 17155584000. Its totient is φ = 1397440512.

The previous prime is 5266966583. The next prime is 5266966669. The reversal of 5266966656 is 6566696625.

It is a junction number, because it is equal to n+sod(n) for n = 5266966596 and 5266966605.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3609255 + ... + 3610713.

It is an arithmetic number, because the mean of its divisors is an integer number (67014000).

Almost surely, 2^5266966656 is an apocalyptic number.

5266966656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5266966656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8577792000).

5266966656 is an abundant number, since it is smaller than the sum of its proper divisors (11888617344).

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

5266966656 is a wasteful number, since it uses less digits than its factorization.

5266966656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579 (or 1567 counting only the distinct ones).

The product of its digits is 20995200, while the sum is 57.

The square root of 5266966656 is about 72573.8703391241. The cubic root of 5266966656 is about 1739.8835805316.

The spelling of 5266966656 in words is "five billion, two hundred sixty-six million, nine hundred sixty-six thousand, six hundred fifty-six".