5561051064066 has 12 divisors (see below), whose sum is σ = 12048943972182. Its totient is φ = 1853683688016.

The previous prime is 5561051064053. The next prime is 5561051064211. The reversal of 5561051064066 is 6604601501655.

5561051064066 is a `hidden beast` number, since 5 + 5 + 6 + 10 + 510 + 64 + 0 + 66 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5436568406025 + 124482658041 = 2331645^2 + 352821^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154473640651 + ... + 154473640686.

Almost surely, 2^{5561051064066} is an apocalyptic number.

5561051064066 is an abundant number, since it is smaller than the sum of its proper divisors (6487892908116).

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

5561051064066 is a wasteful number, since it uses less digits than its factorization.

5561051064066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308947281345 (or 308947281342 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 5561051064066 in words is "five trillion, five hundred sixty-one billion, fifty-one million, sixty-four thousand, sixty-six".