6626275840 has 160 divisors (see below), whose sum is σ = 17014536000. Its totient is φ = 2467381248.

The previous prime is 6626275807. The next prime is 6626275841. The reversal of 6626275840 is 485726266.

It is a tau number, because it is divible by the number of its divisors (160).

It is not an unprimeable number, because it can be changed into a prime (6626275841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2868606 + ... + 2870914.

It is an arithmetic number, because the mean of its divisors is an integer number (106340850).

Almost surely, 2^6626275840 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 6626275840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8507268000).

6626275840 is an abundant number, since it is smaller than the sum of its proper divisors (10388260160).

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

6626275840 is a wasteful number, since it uses less digits than its factorization.

6626275840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410 (or 2394 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The square root of 6626275840 is about 81401.9400260215. The cubic root of 6626275840 is about 1878.2634333875.

The spelling of 6626275840 in words is "six billion, six hundred twenty-six million, two hundred seventy-five thousand, eight hundred forty".