640141432023 has 16 divisors (see below), whose sum is σ = 901687617920. Its totient is φ = 402840275616.

The previous prime is 640141431991. The next prime is 640141432087. The reversal of 640141432023 is 320234141046.

640141432023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 640141432023 - 2⁵ = 640141431991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (640141432093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20255965 + ... + 20287542.

It is an arithmetic number, because the mean of its divisors is an integer number (56355476120).

Almost surely, 2^640141432023 is an apocalyptic number.

640141432023 is a deficient number, since it is larger than the sum of its proper divisors (261546185897).

640141432023 is a wasteful number, since it uses less digits than its factorization.

640141432023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40543806.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 640141432023 its reverse (320234141046), we get a palindrome (960375573069).

The spelling of 640141432023 in words is "six hundred forty billion, one hundred forty-one million, four hundred thirty-two thousand, twenty-three".