172221046260 has 192 divisors, whose sum is σ = 522123936768. Its totient is φ = 42249650176.

The previous prime is 172221046241. The next prime is 172221046289. The reversal of 172221046260 is 62640122271.

It is a congruent number.

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, 46835542 + ... + 46839218.

It is an arithmetic number, because the mean of its divisors is an integer number (2719395504).

Almost surely, 2^172221046260 is an apocalyptic number.

172221046260 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 172221046260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261061968384).

172221046260 is an abundant number, since it is smaller than the sum of its proper divisors (349902890508).

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

172221046260 is a wasteful number, since it uses less digits than its factorization.

172221046260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4730 (or 4728 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The spelling of 172221046260 in words is "one hundred seventy-two billion, two hundred twenty-one million, forty-six thousand, two hundred sixty".