2212698164656 has 160 divisors (see below), whose sum is σ = 5261771225088. Its totient is φ = 879830138880.

The previous prime is 2212698164609. The next prime is 2212698164669. The reversal of 2212698164656 is 6564618962122.

It is a self number, because there is not a number n which added to its sum of digits gives 2212698164656.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73153696 + ... + 73183936.

Almost surely, 2^{2212698164656} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2212698164656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2630885612544).

2212698164656 is an abundant number, since it is smaller than the sum of its proper divisors (3049073060432).

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

2212698164656 is a wasteful number, since it uses less digits than its factorization.

2212698164656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30819 (or 30813 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 58.

The spelling of 2212698164656 in words is "two trillion, two hundred twelve billion, six hundred ninety-eight million, one hundred sixty-four thousand, six hundred fifty-six".