6557600067556 has 12 divisors (see below), whose sum is σ = 11493703087020. Its totient is φ = 3273684899840.

The previous prime is 6557600067541. The next prime is 6557600067587.

6557600067556 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 6198187827456 + 359412240100 = 2489616^2 + 599510^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6557600067556.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1278780601 + ... + 1278785728.

It is an arithmetic number, because the mean of its divisors is an integer number (957808590585).

Almost surely, 2^{6557600067556} is an apocalyptic number.

It is an amenable number.

6557600067556 is a deficient number, since it is larger than the sum of its proper divisors (4936103019464).

6557600067556 is a wasteful number, since it uses less digits than its factorization.

6557600067556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557566974 (or 2557566972 counting only the distinct ones).

The product of its (nonzero) digits is 39690000, while the sum is 58.

The spelling of 6557600067556 in words is "six trillion, five hundred fifty-seven billion, six hundred million, sixty-seven thousand, five hundred fifty-six".