161049568 has 24 divisors (see below), whose sum is σ = 335718432. Its totient is φ = 75787776.

The previous prime is 161049547. The next prime is 161049569. The reversal of 161049568 is 865940161.

161049568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 161049568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161049569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147480 + ... + 148567.

It is an arithmetic number, because the mean of its divisors is an integer number (13988268).

Almost surely, 2^161049568 is an apocalyptic number.

It is an amenable number.

161049568 is an abundant number, since it is smaller than the sum of its proper divisors (174668864).

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

161049568 is a wasteful number, since it uses less digits than its factorization.

161049568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296074 (or 296066 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 161049568 is about 12690.5306429637. The cubic root of 161049568 is about 544.0680062040.

The spelling of 161049568 in words is "one hundred sixty-one million, forty-nine thousand, five hundred sixty-eight".