40520146005 has 24 divisors (see below), whose sum is σ = 70279023672. Its totient is φ = 21597174144.

The previous prime is 40520146003. The next prime is 40520146013. The reversal of 40520146005 is 50064102504.

40520146005 is a `hidden beast` number, since 4 + 0 + 52 + 0 + 1 + 4 + 600 + 5 = 666.

40520146005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 382828356 + 40137317649 = 19566^2 + 200343^2 .

It is not a de Polignac number, because 40520146005 - 2¹ = 40520146003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40520146005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40520146003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210054 + ... + 353783.

It is an arithmetic number, because the mean of its divisors is an integer number (2928292653).

Almost surely, 2^40520146005 is an apocalyptic number.

40520146005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40520146005 is a deficient number, since it is larger than the sum of its proper divisors (29758877667).

40520146005 is a wasteful number, since it uses less digits than its factorization.

40520146005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565445 (or 565442 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 40520146005 its reverse (50064102504), we get a palindrome (90584248509).

The spelling of 40520146005 in words is "forty billion, five hundred twenty million, one hundred forty-six thousand, five".