6551881476 has 96 divisors (see below), whose sum is σ = 18393274368. Its totient is φ = 1774671360.

The previous prime is 6551881471. The next prime is 6551881493. The reversal of 6551881476 is 6741881556.

It is not an unprimeable number, because it can be changed into a prime (6551881471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203311 + ... + 233321.

It is an arithmetic number, because the mean of its divisors is an integer number (191596608).

Almost surely, 2^6551881476 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 6551881476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9196637184).

6551881476 is an abundant number, since it is smaller than the sum of its proper divisors (11841392892).

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

6551881476 is a wasteful number, since it uses less digits than its factorization.

6551881476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30161 (or 30159 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 51.

The square root of 6551881476 is about 80943.6932441311. The cubic root of 6551881476 is about 1871.2077641115.

The spelling of 6551881476 in words is "six billion, five hundred fifty-one million, eight hundred eighty-one thousand, four hundred seventy-six".