40345540223 has 2 divisors, whose sum is σ = 40345540224. Its totient is φ = 40345540222.

The previous prime is 40345540217. The next prime is 40345540231. The reversal of 40345540223 is 32204554304.

40345540223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40345540223 - 2⁶ = 40345540159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40345540223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40345540243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20172770111 + 20172770112.

It is an arithmetic number, because the mean of its divisors is an integer number (20172770112).

Almost surely, 2^40345540223 is an apocalyptic number.

40345540223 is a deficient number, since it is larger than the sum of its proper divisors (1).

40345540223 is an equidigital number, since it uses as much as digits as its factorization.

40345540223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 32.

The spelling of 40345540223 in words is "forty billion, three hundred forty-five million, five hundred forty thousand, two hundred twenty-three".