6645460934870 has 8 divisors (see below), whose sum is σ = 11961829682784. Its totient is φ = 2658184373944.

The previous prime is 6645460934863. The next prime is 6645460934873. The reversal of 6645460934870 is 784390645466.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6645460934873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332273046734 + ... + 332273046753.

It is an arithmetic number, because the mean of its divisors is an integer number (1495228710348).

Almost surely, 2^{6645460934870} is an apocalyptic number.

6645460934870 is a deficient number, since it is larger than the sum of its proper divisors (5316368747914).

6645460934870 is a wasteful number, since it uses less digits than its factorization.

6645460934870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664546093494.

The product of its (nonzero) digits is 104509440, while the sum is 62.

The spelling of 6645460934870 in words is "six trillion, six hundred forty-five billion, four hundred sixty million, nine hundred thirty-four thousand, eight hundred seventy".