172041240000 has 560 divisors, whose sum is σ = 656379891200. Its totient is φ = 38942208000.

The previous prime is 172041239987. The next prime is 172041240011. The reversal of 172041240000 is 42140271.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (560).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 91559061 + ... + 91560939.

Almost surely, 2^172041240000 is an apocalyptic number.

172041240000 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 172041240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328189945600).

172041240000 is an abundant number, since it is smaller than the sum of its proper divisors (484338651200).

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

172041240000 is a wasteful number, since it uses less digits than its factorization.

172041240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030 (or 2005 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

Adding to 172041240000 its reverse (42140271), we get a palindrome (172083380271).

The spelling of 172041240000 in words is "one hundred seventy-two billion, forty-one million, two hundred forty thousand".