2021996536444 has 192 divisors, whose sum is σ = 3994664325120. Its totient is φ = 891173376000.

The previous prime is 2021996536363. The next prime is 2021996536451. The reversal of 2021996536444 is 4446356991202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2462845554 + ... + 2462846374.

It is an arithmetic number, because the mean of its divisors is an integer number (20805543360).

Almost surely, 2^{2021996536444} is an apocalyptic number.

It is an amenable number.

2021996536444 is a deficient number, since it is larger than the sum of its proper divisors (1972667788676).

2021996536444 is a wasteful number, since it uses less digits than its factorization.

2021996536444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220 (or 1218 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 55.

The spelling of 2021996536444 in words is "two trillion, twenty-one billion, nine hundred ninety-six million, five hundred thirty-six thousand, four hundred forty-four".