223087620015161 has 4 divisors (see below), whose sum is σ = 243368312743824. Its totient is φ = 202806927286500.

The previous prime is 223087620015131. The next prime is 223087620015173. The reversal of 223087620015161 is 161510026780322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 223087620015161 - 2¹⁰ = 223087620014137 is a prime.

It is a super-3 number, since 3×223087620015161³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223087620015131) 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, 10140346364315 + ... + 10140346364336.

It is an arithmetic number, because the mean of its divisors is an integer number (60842078185956).

Almost surely, 2^{223087620015161} is an apocalyptic number.

It is an amenable number.

223087620015161 is a deficient number, since it is larger than the sum of its proper divisors (20280692728663).

223087620015161 is a wasteful number, since it uses less digits than its factorization.

223087620015161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20280692728662.

The product of its (nonzero) digits is 241920, while the sum is 44.

Adding to 223087620015161 its reverse (161510026780322), we get a palindrome (384597646795483).

The spelling of 223087620015161 in words is "two hundred twenty-three trillion, eighty-seven billion, six hundred twenty million, fifteen thousand, one hundred sixty-one".