171655650056 has 24 divisors (see below), whose sum is σ = 353773784910. Its totient is φ = 78025295040.

The previous prime is 171655650029. The next prime is 171655650079. The reversal of 171655650056 is 650056556171.

171655650056 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 142936924900 + 28718725156 = 378070^2 + 169466^2 .

It is a super-2 number, since 2×171655650056² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88664141 + ... + 88666076.

Almost surely, 2^171655650056 is an apocalyptic number.

It is an amenable number.

171655650056 is an abundant number, since it is smaller than the sum of its proper divisors (182118134854).

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

171655650056 is a wasteful number, since it uses less digits than its factorization.

171655650056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177330245 (or 177330230 counting only the distinct ones).

The product of its (nonzero) digits is 945000, while the sum is 47.

The spelling of 171655650056 in words is "one hundred seventy-one billion, six hundred fifty-five million, six hundred fifty thousand, fifty-six".