2179819965696 has 288 divisors, whose sum is σ = 5956473511296. Its totient is φ = 707481600000.

The previous prime is 2179819965689. The next prime is 2179819965721. The reversal of 2179819965696 is 6965699189712.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2316492586 + ... + 2316493526.

It is an arithmetic number, because the mean of its divisors is an integer number (20682199692).

Almost surely, 2^{2179819965696} 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 2179819965696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2978236755648).

2179819965696 is an abundant number, since it is smaller than the sum of its proper divisors (3776653545600).

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

2179819965696 is a wasteful number, since it uses less digits than its factorization.

2179819965696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469 (or 1455 counting only the distinct ones).

The product of its digits is 793618560, while the sum is 78.

The spelling of 2179819965696 in words is "two trillion, one hundred seventy-nine billion, eight hundred nineteen million, nine hundred sixty-five thousand, six hundred ninety-six".