13172765148 has 72 divisors (see below), whose sum is σ = 34562376576. Its totient is φ = 4225737600.

The previous prime is 13172765141. The next prime is 13172765161. The reversal of 13172765148 is 84156727131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13172765141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169390 + ... + 234602.

It is an arithmetic number, because the mean of its divisors is an integer number (480033008).

Almost surely, 2^13172765148 is an apocalyptic number.

13172765148 is a gapful number since it is divisible by the number (18) 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 13172765148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17281188288).

13172765148 is an abundant number, since it is smaller than the sum of its proper divisors (21389611428).

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

13172765148 is a wasteful number, since it uses less digits than its factorization.

13172765148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65435 (or 65430 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The spelling of 13172765148 in words is "thirteen billion, one hundred seventy-two million, seven hundred sixty-five thousand, one hundred forty-eight".