6625885266 has 128 divisors (see below), whose sum is σ = 19769702400. Its totient is φ = 1588610880.

The previous prime is 6625885247. The next prime is 6625885267.

6625885266 is a `hidden beast` number, since 6 + 6 + 2 + 588 + 52 + 6 + 6 = 666.

6625885266 is nontrivially palindromic in base 10.

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

It is not an unprimeable number, because it can be changed into a prime (6625885267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7236 + ... + 115343.

It is an arithmetic number, because the mean of its divisors is an integer number (154450800).

Almost surely, 2^6625885266 is an apocalyptic number.

6625885266 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 6625885266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9884851200).

6625885266 is an abundant number, since it is smaller than the sum of its proper divisors (13143817134).

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

6625885266 is a wasteful number, since it uses less digits than its factorization.

6625885266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122621 (or 122615 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 54.

The square root of 6625885266 is about 81399.5409446515. The cubic root of 6625885266 is about 1878.2265290341.

The spelling of 6625885266 in words is "six billion, six hundred twenty-five million, eight hundred eighty-five thousand, two hundred sixty-six".