223740206291 has 12 divisors (see below), whose sum is σ = 261006546312. Its totient is φ = 191234026368.

The previous prime is 223740206227. The next prime is 223740206293. The reversal of 223740206291 is 192602047322.

It is a happy number.

It is not a de Polignac number, because 223740206291 - 2⁶ = 223740206227 is a prime.

It is a super-2 number, since 2×223740206291² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223740206293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6450305 + ... + 6484898.

It is an arithmetic number, because the mean of its divisors is an integer number (21750545526).

Almost surely, 2^223740206291 is an apocalyptic number.

223740206291 is a deficient number, since it is larger than the sum of its proper divisors (37266340021).

223740206291 is a wasteful number, since it uses less digits than its factorization.

223740206291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12935570 (or 12935563 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 223740206291 in words is "two hundred twenty-three billion, seven hundred forty million, two hundred six thousand, two hundred ninety-one".