646552525232116 has 12 divisors (see below), whose sum is σ = 1131467199714432. Its totient is φ = 323276182456568.

The previous prime is 646552525232099. The next prime is 646552525232123. The reversal of 646552525232116 is 611232525255646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431901 + ... + 35962363.

It is an arithmetic number, because the mean of its divisors is an integer number (94288933309536).

Almost surely, 2^{646552525232116} is an apocalyptic number.

It is an amenable number.

646552525232116 is a deficient number, since it is larger than the sum of its proper divisors (484914674482316).

646552525232116 is a wasteful number, since it uses less digits than its factorization.

646552525232116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40079750 (or 40079748 counting only the distinct ones).

The product of its digits is 25920000, while the sum is 55.

The spelling of 646552525232116 in words is "six hundred forty-six trillion, five hundred fifty-two billion, five hundred twenty-five million, two hundred thirty-two thousand, one hundred sixteen".