161391703006 has 8 divisors (see below), whose sum is σ = 242162723304. Its totient is φ = 80670795240.

The previous prime is 161391702991. The next prime is 161391703007. The reversal of 161391703006 is 600307193161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161391703007) 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 3 ways as a sum of consecutive naturals, for example, 12520080 + ... + 12532963.

It is an arithmetic number, because the mean of its divisors is an integer number (30270340413).

Almost surely, 2^161391703006 is an apocalyptic number.

161391703006 is a deficient number, since it is larger than the sum of its proper divisors (80771020298).

161391703006 is a wasteful number, since it uses less digits than its factorization.

161391703006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25056266.

The product of its (nonzero) digits is 20412, while the sum is 37.

Adding to 161391703006 its reverse (600307193161), we get a palindrome (761698896167).

The spelling of 161391703006 in words is "one hundred sixty-one billion, three hundred ninety-one million, seven hundred three thousand, six".