6551794944 has 144 divisors (see below), whose sum is σ = 20000458240. Its totient is φ = 2113413120.

The previous prime is 6551794937. The next prime is 6551794961. The reversal of 6551794944 is 4494971556.

6551794944 is a `hidden beast` number, since 6 + 551 + 7 + 9 + 49 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198984 + ... + 229560.

Almost surely, 2^6551794944 is an apocalyptic number.

6551794944 is a gapful number since it is divisible by the number (64) 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 6551794944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10000229120).

6551794944 is an abundant number, since it is smaller than the sum of its proper divisors (13448663296).

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

6551794944 is a wasteful number, since it uses less digits than its factorization.

6551794944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30633 (or 30613 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The square root of 6551794944 is about 80943.1587226493. The cubic root of 6551794944 is about 1871.1995262710.

It can be divided in two parts, 65517 and 94944, that added together give a triangular number (160461 = T₅₆₆).

The spelling of 6551794944 in words is "six billion, five hundred fifty-one million, seven hundred ninety-four thousand, nine hundred forty-four".