6652489780 has 12 divisors (see below), whose sum is σ = 13970228580. Its totient is φ = 2660995904.

The previous prime is 6652489729. The next prime is 6652489799. The reversal of 6652489780 is 879842566.

It can be written as a sum of positive squares in 2 ways, for example, as 3006986896 + 3645502884 = 54836^2 + 60378^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 166312225 + ... + 166312264.

It is an arithmetic number, because the mean of its divisors is an integer number (1164185715).

Almost surely, 2^6652489780 is an apocalyptic number.

It is an amenable number.

6652489780 is an abundant number, since it is smaller than the sum of its proper divisors (7317738800).

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

6652489780 is a wasteful number, since it uses less digits than its factorization.

6652489780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332624498 (or 332624496 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 55.

The square root of 6652489780 is about 81562.7965435222. The cubic root of 6652489780 is about 1880.7370148637.

The spelling of 6652489780 in words is "six billion, six hundred fifty-two million, four hundred eighty-nine thousand, seven hundred eighty".