10172322720 has 144 divisors (see below), whose sum is σ = 39672097920. Its totient is φ = 2325100032.

The previous prime is 10172322709. The next prime is 10172322737. The reversal of 10172322720 is 2722327101.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×10172322720² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 494500 + ... + 514659.

It is an arithmetic number, because the mean of its divisors is an integer number (275500680).

Almost surely, 2^10172322720 is an apocalyptic number.

10172322720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10172322720 is an abundant number, since it is smaller than the sum of its proper divisors (29499775200).

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

10172322720 is a wasteful number, since it uses less digits than its factorization.

10172322720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009187 (or 1009176 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

Adding to 10172322720 its reverse (2722327101), we get a palindrome (12894649821).

The spelling of 10172322720 in words is "ten billion, one hundred seventy-two million, three hundred twenty-two thousand, seven hundred twenty".