6240666002645 has 8 divisors (see below), whose sum is σ = 7536498562104. Its totient is φ = 4960733229504.

The previous prime is 6240666002633. The next prime is 6240666002653. The reversal of 6240666002645 is 5462006660426.

It can be written as a sum of positive squares in 4 ways, for example, as 11004429604 + 6229661573041 = 104902^2 + 2495929^2 .

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 6240666002645 - 2²² = 6240661808341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6240666002645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3974945714 + ... + 3974947283.

It is an arithmetic number, because the mean of its divisors is an integer number (942062320263).

Almost surely, 2^{6240666002645} is an apocalyptic number.

It is an amenable number.

6240666002645 is a deficient number, since it is larger than the sum of its proper divisors (1295832559459).

6240666002645 is a wasteful number, since it uses less digits than its factorization.

6240666002645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7949893159.

The product of its (nonzero) digits is 2488320, while the sum is 47.

The spelling of 6240666002645 in words is "six trillion, two hundred forty billion, six hundred sixty-six million, two thousand, six hundred forty-five".