161360553 has 16 divisors (see below), whose sum is σ = 227747520. Its totient is φ = 101446464.

The previous prime is 161360539. The next prime is 161360557. The reversal of 161360553 is 355063161.

161360553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161360553 - 2⁶ = 161360489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161360553.

It is not an unprimeable number, because it can be changed into a prime (161360557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17826 + ... + 25307.

It is an arithmetic number, because the mean of its divisors is an integer number (14234220).

Almost surely, 2^161360553 is an apocalyptic number.

It is an amenable number.

161360553 is a deficient number, since it is larger than the sum of its proper divisors (66386967).

161360553 is a wasteful number, since it uses less digits than its factorization.

161360553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43208.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 161360553 is about 12702.7773734723. Note that the first 3 decimals coincide. The cubic root of 161360553 is about 544.4179775447.

The spelling of 161360553 in words is "one hundred sixty-one million, three hundred sixty thousand, five hundred fifty-three".