172044000000 has 882 divisors, whose sum is σ = 654510762780. Its totient is φ = 45100800000.

The previous prime is 172043999983. The next prime is 172044000053. The reversal of 172044000000 is 440271.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 97 ways as a sum of consecutive naturals, for example, 2915999971 + ... + 2916000029.

Almost surely, 2^172044000000 is an apocalyptic number.

172044000000 is a gapful number since it is divisible by the number (10) 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 172044000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327255381390).

172044000000 is an abundant number, since it is smaller than the sum of its proper divisors (482466762780).

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

172044000000 is an frugal number, since it uses more digits than its factorization.

172044000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

Adding to 172044000000 its reverse (440271), we get a palindrome (172044440271).

The spelling of 172044000000 in words is "one hundred seventy-two billion, forty-four million", and thus it is an aban number.