6666025022645 has 16 divisors (see below), whose sum is σ = 8055264672000. Its totient is φ = 5295547635648.

The previous prime is 6666025022641. The next prime is 6666025022647. The reversal of 6666025022645 is 5462205206666.

It is a cyclic number.

It is not a de Polignac number, because 6666025022645 - 2² = 6666025022641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6666025022593 and 6666025022602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666025022641) 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, 4617965 + ... + 5887074.

It is an arithmetic number, because the mean of its divisors is an integer number (503454042000).

Almost surely, 2^{6666025022645} is an apocalyptic number.

It is an amenable number.

6666025022645 is a deficient number, since it is larger than the sum of its proper divisors (1389239649355).

6666025022645 is a wasteful number, since it uses less digits than its factorization.

6666025022645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10505932.

The product of its (nonzero) digits is 6220800, while the sum is 50.

The spelling of 6666025022645 in words is "six trillion, six hundred sixty-six billion, twenty-five million, twenty-two thousand, six hundred forty-five".