203162355456 has 144 divisors (see below), whose sum is σ = 560959529760. Its totient is φ = 65197834240.

The previous prime is 203162355443. The next prime is 203162355479. The reversal of 203162355456 is 654553261302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7849096 + ... + 7874936.

It is an arithmetic number, because the mean of its divisors is an integer number (3895552290).

Almost surely, 2^203162355456 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 203162355456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280479764880).

203162355456 is an abundant number, since it is smaller than the sum of its proper divisors (357797174304).

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

203162355456 is a wasteful number, since it uses less digits than its factorization.

203162355456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26242 (or 26228 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 203162355456 in words is "two hundred three billion, one hundred sixty-two million, three hundred fifty-five thousand, four hundred fifty-six".