2120623994016 has 576 divisors, whose sum is σ = 6975848355840. Its totient is φ = 628249789440.

The previous prime is 2120623993997. The next prime is 2120623994033. The reversal of 2120623994016 is 6104993260212.

2120623994016 is a `hidden beast` number, since 2 + 1 + 2 + 0 + 6 + 239 + 9 + 401 + 6 = 666.

It is a super-2 number, since 2×2120623994016² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1627492821 + ... + 1627494123.

It is an arithmetic number, because the mean of its divisors is an integer number (12110847840).

Almost surely, 2^{2120623994016} 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 2120623994016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3487924177920).

2120623994016 is an abundant number, since it is smaller than the sum of its proper divisors (4855224361824).

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

2120623994016 is a wasteful number, since it uses less digits than its factorization.

2120623994016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751 (or 1731 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 2120623994016 in words is "two trillion, one hundred twenty billion, six hundred twenty-three million, nine hundred ninety-four thousand, sixteen".