171606140634 has 16 divisors (see below), whose sum is σ = 343266211872. Its totient is φ = 57193058448.

The previous prime is 171606140633. The next prime is 171606140677. The reversal of 171606140634 is 436041606171.

It is a junction number, because it is equal to n+sod(n) for n = 171606140592 and 171606140601.

It is not an unprimeable number, because it can be changed into a prime (171606140633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2205684 + ... + 2282159.

It is an arithmetic number, because the mean of its divisors is an integer number (21454138242).

Almost surely, 2^171606140634 is an apocalyptic number.

171606140634 is an abundant number, since it is smaller than the sum of its proper divisors (171660071238).

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

171606140634 is a wasteful number, since it uses less digits than its factorization.

171606140634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4494221.

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 171606140634 in words is "one hundred seventy-one billion, six hundred six million, one hundred forty thousand, six hundred thirty-four".