1656316968216 has 64 divisors (see below), whose sum is σ = 4151001254400. Its totient is φ = 550745193600.

The previous prime is 1656316968169. The next prime is 1656316968269. The reversal of 1656316968216 is 6128696136561.

It is a self number, because there is not a number n which added to its sum of digits gives 1656316968216.

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, 40816945 + ... + 40857503.

It is an arithmetic number, because the mean of its divisors is an integer number (64859394600).

Almost surely, 2^{1656316968216} is an apocalyptic number.

It is an amenable number.

1656316968216 is an abundant number, since it is smaller than the sum of its proper divisors (2494684286184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1656316968216 is a wasteful number, since it uses less digits than its factorization.

1656316968216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44720 (or 44716 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 60.

The spelling of 1656316968216 in words is "one trillion, six hundred fifty-six billion, three hundred sixteen million, nine hundred sixty-eight thousand, two hundred sixteen".