6651206202215 has 16 divisors (see below), whose sum is σ = 8167161439008. Its totient is φ = 5197158629376.

The previous prime is 6651206202181. The next prime is 6651206202247. The reversal of 6651206202215 is 5122026021566.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6651206202215 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26265887 + ... + 26517903.

It is an arithmetic number, because the mean of its divisors is an integer number (510447589938).

Almost surely, 2^{6651206202215} is an apocalyptic number.

6651206202215 is a deficient number, since it is larger than the sum of its proper divisors (1515955236793).

6651206202215 is a wasteful number, since it uses less digits than its factorization.

6651206202215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374818.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 6651206202215 in words is "six trillion, six hundred fifty-one billion, two hundred six million, two hundred two thousand, two hundred fifteen".