171490061660 has 48 divisors (see below), whose sum is σ = 364334556096. Its totient is φ = 67796908032.

The previous prime is 171490061657. The next prime is 171490061669. The reversal of 171490061660 is 66160094171.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171490061669) 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 15 ways as a sum of consecutive naturals, for example, 1381934 + ... + 1500906.

It is an arithmetic number, because the mean of its divisors is an integer number (7590303252).

Almost surely, 2^171490061660 is an apocalyptic number.

171490061660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

171490061660 is an abundant number, since it is smaller than the sum of its proper divisors (192844494436).

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

171490061660 is a wasteful number, since it uses less digits than its factorization.

171490061660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119822 (or 119820 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 171490061660 in words is "one hundred seventy-one billion, four hundred ninety million, sixty-one thousand, six hundred sixty".