15172006600000 has 84 divisors (see below), whose sum is σ = 37631280186108. Its totient is φ = 6068802560000.

The previous prime is 15172006599979. The next prime is 15172006600001. The reversal of 15172006600000 is 660027151.

It can be written as a sum of positive squares in 6 ways, for example, as 9684494208064 + 5487512391936 = 3111992^2 + 2342544^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15172006600001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37730017 + ... + 38130016.

It is an arithmetic number, because the mean of its divisors is an integer number (447991430787).

Almost surely, 2^{15172006600000} is an apocalyptic number.

15172006600000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15172006600000 is an abundant number, since it is smaller than the sum of its proper divisors (22459273586108).

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

15172006600000 is an frugal number, since it uses more digits than its factorization.

15172006600000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75860070 (or 75860040 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

Adding to 15172006600000 its reverse (660027151), we get a palindrome (15172666627151).

The spelling of 15172006600000 in words is "fifteen trillion, one hundred seventy-two billion, six million, six hundred thousand".