171064510661616 has 160 divisors (see below), whose sum is σ = 519182518025472. Its totient is φ = 47849502228480.

The previous prime is 171064510661599. The next prime is 171064510661617. The reversal of 171064510661616 is 616166015460171.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171064510661617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 607412451 + ... + 607694013.

Almost surely, 2^{171064510661616} is an apocalyptic number.

171064510661616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

171064510661616 is an abundant number, since it is smaller than the sum of its proper divisors (348118007363856).

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

171064510661616 is a wasteful number, since it uses less digits than its factorization.

171064510661616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370111 (or 370105 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 171064510661616 in words is "one hundred seventy-one trillion, sixty-four billion, five hundred ten million, six hundred sixty-one thousand, six hundred sixteen".