223664022021145 has 16 divisors (see below), whose sum is σ = 277062543267840. Its totient is φ = 173154396168000.

The previous prime is 223664022021137. The next prime is 223664022021157. The reversal of 223664022021145 is 541120220466322.

It is not a de Polignac number, because 223664022021145 - 2³ = 223664022021137 is a prime.

It is a super-2 number, since 2×223664022021145² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223664022021098 and 223664022021107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14634006 + ... + 25719295.

It is an arithmetic number, because the mean of its divisors is an integer number (17316408954240).

Almost surely, 2^{223664022021145} is an apocalyptic number.

It is an amenable number.

223664022021145 is a deficient number, since it is larger than the sum of its proper divisors (53398521246695).

223664022021145 is a wasteful number, since it uses less digits than its factorization.

223664022021145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40389096.

The product of its (nonzero) digits is 276480, while the sum is 40.

Adding to 223664022021145 its reverse (541120220466322), we get a palindrome (764784242487467).

The spelling of 223664022021145 in words is "two hundred twenty-three trillion, six hundred sixty-four billion, twenty-two million, twenty-one thousand, one hundred forty-five".