172401033000 has 256 divisors, whose sum is σ = 615464179200. Its totient is φ = 39359078400.

The previous prime is 172401032981. The next prime is 172401033017. The reversal of 172401033000 is 330104271.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19504582 + ... + 19513418.

It is an arithmetic number, because the mean of its divisors is an integer number (2404156950).

Almost surely, 2^172401033000 is an apocalyptic number.

172401033000 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 172401033000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307732089600).

172401033000 is an abundant number, since it is smaller than the sum of its proper divisors (443063146200).

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

172401033000 is a wasteful number, since it uses less digits than its factorization.

172401033000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9797 (or 9783 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

Adding to 172401033000 its reverse (330104271), we get a palindrome (172731137271).

The spelling of 172401033000 in words is "one hundred seventy-two billion, four hundred one million, thirty-three thousand".