171600061120072 has 64 divisors (see below), whose sum is σ = 355289726358000. Its totient is φ = 77194659164160.

The previous prime is 171600061120051. The next prime is 171600061120079. The reversal of 171600061120072 is 270021160006171.

It can be written as a sum of positive squares in 8 ways, for example, as 44756019720036 + 126844041400036 = 6689994^2 + 11262506^2 .

It is not an unprimeable number, because it can be changed into a prime (171600061120079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14709103 + ... + 23654974.

Almost surely, 2^{171600061120072} is an apocalyptic number.

It is an amenable number.

171600061120072 is an abundant number, since it is smaller than the sum of its proper divisors (183689665237928).

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

171600061120072 is a wasteful number, since it uses less digits than its factorization.

171600061120072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38365186 (or 38365182 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 34.

The spelling of 171600061120072 in words is "one hundred seventy-one trillion, six hundred billion, sixty-one million, one hundred twenty thousand, seventy-two".