203992556992 has 168 divisors, whose sum is σ = 524830395600. Its totient is φ = 77951655936.

The previous prime is 203992556959. The next prime is 203992557001. The reversal of 203992556992 is 299655299302.

It is a super-2 number, since 2×203992556992² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 203992556992.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 912234 + ... + 1113622.

It is an arithmetic number, because the mean of its divisors is an integer number (3123990450).

Almost surely, 2^203992556992 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 203992556992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262415197800).

203992556992 is an abundant number, since it is smaller than the sum of its proper divisors (320837838608).

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

203992556992 is a wasteful number, since it uses less digits than its factorization.

203992556992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201451 (or 201434 counting only the distinct ones).

The product of its (nonzero) digits is 23619600, while the sum is 61.

The spelling of 203992556992 in words is "two hundred three billion, nine hundred ninety-two million, five hundred fifty-six thousand, nine hundred ninety-two".