5665066511620 has 24 divisors (see below), whose sum is σ = 12280402245888. Its totient is φ = 2192928972000.

The previous prime is 5665066511597. The next prime is 5665066511627. The reversal of 5665066511620 is 261156605665.

It is not an unprimeable number, because it can be changed into a prime (5665066511627) 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, 4568601406 + ... + 4568602645.

It is an arithmetic number, because the mean of its divisors is an integer number (511683426912).

Almost surely, 2^{5665066511620} is an apocalyptic number.

It is an amenable number.

5665066511620 is an abundant number, since it is smaller than the sum of its proper divisors (6615335734268).

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

5665066511620 is a wasteful number, since it uses less digits than its factorization.

5665066511620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9137204091 (or 9137204089 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 49.

The spelling of 5665066511620 in words is "five trillion, six hundred sixty-five billion, sixty-six million, five hundred eleven thousand, six hundred twenty".