203553445982 has 16 divisors (see below), whose sum is σ = 313861700112. Its totient is φ = 98937780480.

The previous prime is 203553445943. The next prime is 203553445987. The reversal of 203553445982 is 289544355302.

It is a super-2 number, since 2×203553445982² (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 203553445982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203553445987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1141619 + ... + 1307822.

It is an arithmetic number, because the mean of its divisors is an integer number (19616356257).

Almost surely, 2^203553445982 is an apocalyptic number.

203553445982 is a deficient number, since it is larger than the sum of its proper divisors (110308254130).

203553445982 is a wasteful number, since it uses less digits than its factorization.

203553445982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450603.

The product of its (nonzero) digits is 5184000, while the sum is 50.

The spelling of 203553445982 in words is "two hundred three billion, five hundred fifty-three million, four hundred forty-five thousand, nine hundred eighty-two".