6551369380 has 12 divisors (see below), whose sum is σ = 13757875740. Its totient is φ = 2620547744.

The previous prime is 6551369359. The next prime is 6551369387. The reversal of 6551369380 is 839631556.

It can be written as a sum of positive squares in 2 ways, for example, as 3375145216 + 3176224164 = 58096^2 + 56358^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6551369380.

It is not an unprimeable number, because it can be changed into a prime (6551369387) 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 3 ways as a sum of consecutive naturals, for example, 163784215 + ... + 163784254.

It is an arithmetic number, because the mean of its divisors is an integer number (1146489645).

Almost surely, 2^6551369380 is an apocalyptic number.

It is an amenable number.

6551369380 is an abundant number, since it is smaller than the sum of its proper divisors (7206506360).

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

6551369380 is a wasteful number, since it uses less digits than its factorization.

6551369380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327568478 (or 327568476 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 46.

The square root of 6551369380 is about 80940.5298969558. The cubic root of 6551369380 is about 1871.1590115518.

The spelling of 6551369380 in words is "six billion, five hundred fifty-one million, three hundred sixty-nine thousand, three hundred eighty".