40205330613 has 16 divisors (see below), whose sum is σ = 68072517760. Its totient is φ = 22974474528.

The previous prime is 40205330597. The next prime is 40205330639. The reversal of 40205330613 is 31603350204.

It is a happy number.

40205330613 is a `hidden beast` number, since 40 + 2 + 0 + 5 + 3 + 3 + 0 + 613 = 666.

40205330613 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 40205330613 - 2⁴ = 40205330597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40205330663) 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, 106363120 + ... + 106363497.

It is an arithmetic number, because the mean of its divisors is an integer number (4254532360).

Almost surely, 2^40205330613 is an apocalyptic number.

It is an amenable number.

40205330613 is a deficient number, since it is larger than the sum of its proper divisors (27867187147).

40205330613 is a wasteful number, since it uses less digits than its factorization.

40205330613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212726633 (or 212726627 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 40205330613 its reverse (31603350204), we get a palindrome (71808680817).

The spelling of 40205330613 in words is "forty billion, two hundred five million, three hundred thirty thousand, six hundred thirteen".