2196571548816 has 160 divisors (see below), whose sum is σ = 6541073408000. Its totient is φ = 705009951360.

The previous prime is 2196571548779. The next prime is 2196571548839. The reversal of 2196571548816 is 6188451756912.

2196571548816 is a `hidden beast` number, since 2 + 1 + 9 + 6 + 5 + 7 + 1 + 548 + 81 + 6 = 666.

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, 2252895 + ... + 3077121.

It is an arithmetic number, because the mean of its divisors is an integer number (40881708800).

Almost surely, 2^{2196571548816} 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 2196571548816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3270536704000).

2196571548816 is an abundant number, since it is smaller than the sum of its proper divisors (4344501859184).

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

2196571548816 is a wasteful number, since it uses less digits than its factorization.

2196571548816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824474 (or 824462 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 63.

The spelling of 2196571548816 in words is "two trillion, one hundred ninety-six billion, five hundred seventy-one million, five hundred forty-eight thousand, eight hundred sixteen".