6550444603556 has 12 divisors (see below), whose sum is σ = 13100889207168. Its totient is φ = 2807333401512.

The previous prime is 6550444603553. The next prime is 6550444603657. The reversal of 6550444603556 is 6553064440556.

6550444603556 is an admirable number.

It is a super-3 number, since 3×6550444603556³ (a number of 39 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6550444603498 and 6550444603507.

It is not an unprimeable number, because it can be changed into a prime (6550444603553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116972225036 + ... + 116972225091.

It is an arithmetic number, because the mean of its divisors is an integer number (1091740767264).

Almost surely, 2^{6550444603556} is an apocalyptic number.

It is an amenable number.

6550444603556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6550444603556 is a wasteful number, since it uses less digits than its factorization.

6550444603556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233944450138 (or 233944450136 counting only the distinct ones).

The product of its (nonzero) digits is 25920000, while the sum is 53.

The spelling of 6550444603556 in words is "six trillion, five hundred fifty billion, four hundred forty-four million, six hundred three thousand, five hundred fifty-six".