6325423566 has 128 divisors (see below), whose sum is σ = 16416691200. Its totient is φ = 1576565760.

The previous prime is 6325423523. The next prime is 6325423567. The reversal of 6325423566 is 6653245236.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6325423567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2316490 + ... + 2319218.

It is an arithmetic number, because the mean of its divisors is an integer number (128255400).

Almost surely, 2^6325423566 is an apocalyptic number.

6325423566 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 6325423566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8208345600).

6325423566 is an abundant number, since it is smaller than the sum of its proper divisors (10091267634).

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

6325423566 is a wasteful number, since it uses less digits than its factorization.

6325423566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954.

The product of its digits is 777600, while the sum is 42.

The square root of 6325423566 is about 79532.5314949801. The cubic root of 6325423566 is about 1849.3958159491.

The spelling of 6325423566 in words is "six billion, three hundred twenty-five million, four hundred twenty-three thousand, five hundred sixty-six".