5601115566661 has 8 divisors (see below), whose sum is σ = 5606133248000. Its totient is φ = 5596098885360.

The previous prime is 5601115566623. The next prime is 5601115566701. The reversal of 5601115566661 is 1666655111065.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5601115566661 - 2³⁷ = 5463676613189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5601115566601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11190640 + ... + 11680438.

It is an arithmetic number, because the mean of its divisors is an integer number (700766656000).

Almost surely, 2^{5601115566661} is an apocalyptic number.

It is an amenable number.

5601115566661 is a deficient number, since it is larger than the sum of its proper divisors (5017681339).

5601115566661 is a wasteful number, since it uses less digits than its factorization.

5601115566661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500019.

The product of its (nonzero) digits is 972000, while the sum is 49.

The spelling of 5601115566661 in words is "five trillion, six hundred one billion, one hundred fifteen million, five hundred sixty-six thousand, six hundred sixty-one".