6559779502 has 16 divisors (see below), whose sum is σ = 10100764800. Its totient is φ = 3193192960.

The previous prime is 6559779493. The next prime is 6559779503. The reversal of 6559779502 is 2059779556.

It is a super-2 number, since 2×6559779502² = 86061414229718736008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6559779503) 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 7 ways as a sum of consecutive naturals, for example, 44227 + ... + 122782.

It is an arithmetic number, because the mean of its divisors is an integer number (631297800).

Almost surely, 2^6559779502 is an apocalyptic number.

6559779502 is a deficient number, since it is larger than the sum of its proper divisors (3540985298).

6559779502 is a wasteful number, since it uses less digits than its factorization.

6559779502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167531.

The product of its (nonzero) digits is 5953500, while the sum is 55.

The square root of 6559779502 is about 80992.4657113240. The cubic root of 6559779502 is about 1871.9593504137.

The spelling of 6559779502 in words is "six billion, five hundred fifty-nine million, seven hundred seventy-nine thousand, five hundred two".