163153606351361 has 4 divisors (see below), whose sum is σ = 168779592777300. Its totient is φ = 157527619925424.

The previous prime is 163153606351291. The next prime is 163153606351367.

163153606351361 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60590266800625 + 102563339550736 = 7783975^2 + 10127356^2 .

It is a cyclic number.

It is not a de Polignac number, because 163153606351361 - 2¹⁰ = 163153606350337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163153606351367) 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, 2812993212926 + ... + 2812993212983.

It is an arithmetic number, because the mean of its divisors is an integer number (42194898194325).

Almost surely, 2^{163153606351361} is an apocalyptic number.

It is an amenable number.

163153606351361 is a deficient number, since it is larger than the sum of its proper divisors (5625986425939).

163153606351361 is an equidigital number, since it uses as much as digits as its factorization.

163153606351361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5625986425938.

The product of its (nonzero) digits is 2624400, while the sum is 50.

The spelling of 163153606351361 in words is "one hundred sixty-three trillion, one hundred fifty-three billion, six hundred six million, three hundred fifty-one thousand, three hundred sixty-one".