171120155600 has 60 divisors (see below), whose sum is σ = 414353432064. Its totient is φ = 67909080960.

The previous prime is 171120155599. The next prime is 171120155603. The reversal of 171120155600 is 6551021171.

It is a super-2 number, since 2×171120155600² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171120155603) 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, 1633454 + ... + 1735053.

Almost surely, 2^171120155600 is an apocalyptic number.

171120155600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

171120155600 is an abundant number, since it is smaller than the sum of its proper divisors (243233276464).

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

171120155600 is a wasteful number, since it uses less digits than its factorization.

171120155600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3368652 (or 3368641 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 29.

Adding to 171120155600 its reverse (6551021171), we get a palindrome (177671176771).

The spelling of 171120155600 in words is "one hundred seventy-one billion, one hundred twenty million, one hundred fifty-five thousand, six hundred".