2162545021768 has 16 divisors (see below), whose sum is σ = 4194591637500. Its totient is φ = 1043987251776.

The previous prime is 2162545021691. The next prime is 2162545021801. The reversal of 2162545021768 is 8671205452612.

It can be written as a sum of positive squares in 2 ways, for example, as 2095319940484 + 67225081284 = 1447522^2 + 259278^2 .

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, 4660657143 + ... + 4660657606.

Almost surely, 2^{2162545021768} is an apocalyptic number.

It is an amenable number.

2162545021768 is a deficient number, since it is larger than the sum of its proper divisors (2032046615732).

2162545021768 is a wasteful number, since it uses less digits than its factorization.

2162545021768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9321314784 (or 9321314780 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 2162545021768 in words is "two trillion, one hundred sixty-two billion, five hundred forty-five million, twenty-one thousand, seven hundred sixty-eight".