161310206684 has 18 divisors (see below), whose sum is σ = 310288848912. Its totient is φ = 73322821000.

The previous prime is 161310206683. The next prime is 161310206693. The reversal of 161310206684 is 486602013161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161310206683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166642292 + ... + 166643259.

It is an arithmetic number, because the mean of its divisors is an integer number (17238269384).

Almost surely, 2^161310206684 is an apocalyptic number.

It is an amenable number.

161310206684 is a deficient number, since it is larger than the sum of its proper divisors (148978642228).

161310206684 is a wasteful number, since it uses less digits than its factorization.

161310206684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333285577 (or 333285564 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 161310206684 in words is "one hundred sixty-one billion, three hundred ten million, two hundred six thousand, six hundred eighty-four".