6550650605121 has 16 divisors (see below), whose sum is σ = 10214082008064. Its totient is φ = 3656177081424.

The previous prime is 6550650605087. The next prime is 6550650605123. The reversal of 6550650605121 is 1215060560556.

6550650605121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-6550650605121 is a prime.

It is a super-2 number, since 2×6550650605121² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6550650605123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3627158901 + ... + 3627160706.

It is an arithmetic number, because the mean of its divisors is an integer number (638380125504).

Almost surely, 2^{6550650605121} is an apocalyptic number.

It is an amenable number.

6550650605121 is a deficient number, since it is larger than the sum of its proper divisors (3663431402943).

6550650605121 is a wasteful number, since it uses less digits than its factorization.

6550650605121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7254319660.

The product of its (nonzero) digits is 270000, while the sum is 42.

The spelling of 6550650605121 in words is "six trillion, five hundred fifty billion, six hundred fifty million, six hundred five thousand, one hundred twenty-one".