20353432413508 has 12 divisors (see below), whose sum is σ = 35933714748540. Its totient is φ = 10086656771072.

The previous prime is 20353432413487. The next prime is 20353432413527. The reversal of 20353432413508 is 80531423435302.

It can be written as a sum of positive squares in 2 ways, for example, as 5789759940864 + 14563672472644 = 2406192^2 + 3816238^2 .

It is a super-2 number, since 2×20353432413508² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22514858413 + ... + 22514859316.

It is an arithmetic number, because the mean of its divisors is an integer number (2994476229045).

Almost surely, 2^{20353432413508} is an apocalyptic number.

It is an amenable number.

20353432413508 is a deficient number, since it is larger than the sum of its proper divisors (15580282335032).

20353432413508 is a wasteful number, since it uses less digits than its factorization.

20353432413508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45029717846 (or 45029717844 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 20353432413508 in words is "twenty trillion, three hundred fifty-three billion, four hundred thirty-two million, four hundred thirteen thousand, five hundred eight".