161761006 has 16 divisors (see below), whose sum is σ = 265326768. Its totient is φ = 73353600.

The previous prime is 161760997. The next prime is 161761013. The reversal of 161761006 is 600167161.

161761006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1036 + ... + 18016.

It is an arithmetic number, because the mean of its divisors is an integer number (16582923).

Almost surely, 2^161761006 is an apocalyptic number.

161761006 is a deficient number, since it is larger than the sum of its proper divisors (103565762).

161761006 is a wasteful number, since it uses less digits than its factorization.

161761006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17427.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 161761006 is about 12718.5300251248. The cubic root of 161761006 is about 544.8679712725.

It can be divided in two parts, 161 and 761006, that added together give a palindrome (761167).

The spelling of 161761006 in words is "one hundred sixty-one million, seven hundred sixty-one thousand, six".