17155128132 has 72 divisors (see below), whose sum is σ = 44838175200. Its totient is φ = 5671925856.

The previous prime is 17155128131. The next prime is 17155128143. The reversal of 17155128132 is 23182155171.

17155128132 is a `hidden beast` number, since 1 + 7 + 1 + 5 + 512 + 8 + 132 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (17155128131) 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, 16047294 + ... + 16048362.

Almost surely, 2^17155128132 is an apocalyptic number.

17155128132 is a gapful number since it is divisible by the number (12) 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 17155128132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22419087600).

17155128132 is an abundant number, since it is smaller than the sum of its proper divisors (27683047068).

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

17155128132 is a wasteful number, since it uses less digits than its factorization.

17155128132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290 (or 1213 counting only the distinct ones).

The product of its digits is 16800, while the sum is 36.

The spelling of 17155128132 in words is "seventeen billion, one hundred fifty-five million, one hundred twenty-eight thousand, one hundred thirty-two".