203941044864 has 256 divisors, whose sum is σ = 612321177600. Its totient is φ = 66809318400.

The previous prime is 203941044823. The next prime is 203941044877. The reversal of 203941044864 is 468440149302.

It is a super-3 number, since 3×203941044864³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140551339 + ... + 140552789.

It is an arithmetic number, because the mean of its divisors is an integer number (2391879600).

Almost surely, 2^203941044864 is an apocalyptic number.

203941044864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203941044864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306160588800).

203941044864 is an abundant number, since it is smaller than the sum of its proper divisors (408380132736).

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

203941044864 is a wasteful number, since it uses less digits than its factorization.

203941044864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2148 (or 2130 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 203941044864 in words is "two hundred three billion, nine hundred forty-one million, forty-four thousand, eight hundred sixty-four".