544163997900 has 144 divisors (see below), whose sum is σ = 1588117465088. Its totient is φ = 143856000000.

The previous prime is 544163997899. The next prime is 544163997919. The reversal of 544163997900 is 9799361445.

It is a super-2 number, since 2×544163997900² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16106025 + ... + 16139775.

Almost surely, 2^544163997900 is an apocalyptic number.

544163997900 is a gapful number since it is divisible by the number (50) 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 544163997900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (794058732544).

544163997900 is an abundant number, since it is smaller than the sum of its proper divisors (1043953467188).

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

544163997900 is a wasteful number, since it uses less digits than its factorization.

544163997900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34232 (or 34225 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 57.

The spelling of 544163997900 in words is "five hundred forty-four billion, one hundred sixty-three million, nine hundred ninety-seven thousand, nine hundred".