171629810072 has 16 divisors (see below), whose sum is σ = 367778164560. Its totient is φ = 73555632864.

The previous prime is 171629810057. The next prime is 171629810083. The reversal of 171629810072 is 270018926171.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1532408963 + ... + 1532409074.

It is an arithmetic number, because the mean of its divisors is an integer number (22986135285).

Almost surely, 2^171629810072 is an apocalyptic number.

It is an amenable number.

171629810072 is an abundant number, since it is smaller than the sum of its proper divisors (196148354488).

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

171629810072 is a wasteful number, since it uses less digits than its factorization.

171629810072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3064818050 (or 3064818046 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 44.

The spelling of 171629810072 in words is "one hundred seventy-one billion, six hundred twenty-nine million, eight hundred ten thousand, seventy-two".