5665511500066 has 64 divisors (see below), whose sum is σ = 9740359434240. Its totient is φ = 2447883144000.

The previous prime is 5665511500049. The next prime is 5665511500073. The reversal of 5665511500066 is 6600051155665.

It is a junction number, because it is equal to n+sod(n) for n = 5665511499989 and 5665511500025.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29817135 + ... + 30006541.

It is an arithmetic number, because the mean of its divisors is an integer number (152193116160).

Almost surely, 2^{5665511500066} is an apocalyptic number.

5665511500066 is a deficient number, since it is larger than the sum of its proper divisors (4074847934174).

5665511500066 is a wasteful number, since it uses less digits than its factorization.

5665511500066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190231.

The product of its (nonzero) digits is 810000, while the sum is 46.

The spelling of 5665511500066 in words is "five trillion, six hundred sixty-five billion, five hundred eleven million, five hundred thousand, sixty-six".