161384871066 has 32 divisors (see below), whose sum is σ = 334856592000. Its totient is φ = 51791113920.

The previous prime is 161384871059. The next prime is 161384871149. The reversal of 161384871066 is 660178483161.

It is a happy number.

It is a Curzon number.

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, 1268070 + ... + 1389521.

It is an arithmetic number, because the mean of its divisors is an integer number (10464268500).

Almost surely, 2^161384871066 is an apocalyptic number.

161384871066 is an abundant number, since it is smaller than the sum of its proper divisors (173471720934).

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

161384871066 is a wasteful number, since it uses less digits than its factorization.

161384871066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2657974.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 161384871066 in words is "one hundred sixty-one billion, three hundred eighty-four million, eight hundred seventy-one thousand, sixty-six".