172126000000 has 224 divisors, whose sum is σ = 433892883600. Its totient is φ = 68006400000.

The previous prime is 172125999953. The next prime is 172126000027. The reversal of 172126000000 is 621271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 177999517 + ... + 178000483.

Almost surely, 2^172126000000 is an apocalyptic number.

172126000000 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 172126000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216946441800).

172126000000 is an abundant number, since it is smaller than the sum of its proper divisors (261766883600).

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

172126000000 is an frugal number, since it uses more digits than its factorization.

172126000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100 (or 1063 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

Adding to 172126000000 its reverse (621271), we get a palindrome (172126621271).

The spelling of 172126000000 in words is "one hundred seventy-two billion, one hundred twenty-six million", and thus it is an aban number.