223040666450643 has 32 divisors (see below), whose sum is σ = 320323190976000. Its totient is φ = 137540742904320.

The previous prime is 223040666450629. The next prime is 223040666450663. The reversal of 223040666450643 is 346054666040322.

It is not a de Polignac number, because 223040666450643 - 2⁶ = 223040666450579 is a prime.

It is a super-2 number, since 2×223040666450643² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (223040666450663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96007393 + ... + 98303106.

It is an arithmetic number, because the mean of its divisors is an integer number (10010099718000).

Almost surely, 2^{223040666450643} is an apocalyptic number.

223040666450643 is a deficient number, since it is larger than the sum of its proper divisors (97282524525357).

223040666450643 is a wasteful number, since it uses less digits than its factorization.

223040666450643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194310907.

The product of its (nonzero) digits is 14929920, while the sum is 51.

The spelling of 223040666450643 in words is "two hundred twenty-three trillion, forty billion, six hundred sixty-six million, four hundred fifty thousand, six hundred forty-three".