161734140170 has 32 divisors (see below), whose sum is σ = 294496637760. Its totient is φ = 63944129920.

The previous prime is 161734140157. The next prime is 161734140229. The reversal of 161734140170 is 71041437161.

It is a self number, because there is not a number n which added to its sum of digits gives 161734140170.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2606405 + ... + 2667735.

It is an arithmetic number, because the mean of its divisors is an integer number (9203019930).

Almost surely, 2^161734140170 is an apocalyptic number.

161734140170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161734140170 is a deficient number, since it is larger than the sum of its proper divisors (132762497590).

161734140170 is a wasteful number, since it uses less digits than its factorization.

161734140170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64390.

The product of its (nonzero) digits is 14112, while the sum is 35.

The spelling of 161734140170 in words is "one hundred sixty-one billion, seven hundred thirty-four million, one hundred forty thousand, one hundred seventy".