40023606205 has 12 divisors (see below), whose sum is σ = 52791468156. Its totient is φ = 29108076800.

The previous prime is 40023606169. The next prime is 40023606221. The reversal of 40023606205 is 50260632004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7105309849 + 32918296356 = 84293^2 + 181434^2 .

It is not a de Polignac number, because 40023606205 - 2³³ = 31433671613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33076756 + ... + 33077965.

It is an arithmetic number, because the mean of its divisors is an integer number (4399289013).

Almost surely, 2^40023606205 is an apocalyptic number.

It is an amenable number.

40023606205 is a deficient number, since it is larger than the sum of its proper divisors (12767861951).

40023606205 is a wasteful number, since it uses less digits than its factorization.

40023606205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66154748 (or 66154737 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The spelling of 40023606205 in words is "forty billion, twenty-three million, six hundred six thousand, two hundred five".