223437270721641 has 4 divisors (see below), whose sum is σ = 297916360962192. Its totient is φ = 148958180481092.

The previous prime is 223437270721627. The next prime is 223437270721673. The reversal of 223437270721641 is 146127072734322.

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 223437270721641 - 2¹⁰ = 223437270720617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223437270721241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37239545120271 + ... + 37239545120276.

It is an arithmetic number, because the mean of its divisors is an integer number (74479090240548).

Almost surely, 2^{223437270721641} is an apocalyptic number.

It is an amenable number.

223437270721641 is a deficient number, since it is larger than the sum of its proper divisors (74479090240551).

223437270721641 is an equidigital number, since it uses as much as digits as its factorization.

223437270721641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74479090240550.

The product of its (nonzero) digits is 4741632, while the sum is 51.

The spelling of 223437270721641 in words is "two hundred twenty-three trillion, four hundred thirty-seven billion, two hundred seventy million, seven hundred twenty-one thousand, six hundred forty-one".