20352136541613 has 64 divisors (see below), whose sum is σ = 28142376652800. Its totient is φ = 13076487866880.

The previous prime is 20352136541609. The next prime is 20352136541617. The reversal of 20352136541613 is 31614563125302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20352136541609) and next prime (20352136541617).

It is not a de Polignac number, because 20352136541613 - 2² = 20352136541609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352136541617) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1914408808 + ... + 1914419438.

It is an arithmetic number, because the mean of its divisors is an integer number (439724635200).

Almost surely, 2^{20352136541613} is an apocalyptic number.

It is an amenable number.

20352136541613 is a deficient number, since it is larger than the sum of its proper divisors (7790240111187).

20352136541613 is a wasteful number, since it uses less digits than its factorization.

20352136541613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11642.

The product of its (nonzero) digits is 388800, while the sum is 42.

Adding to 20352136541613 its reverse (31614563125302), we get a palindrome (51966699666915).

The spelling of 20352136541613 in words is "twenty trillion, three hundred fifty-two billion, one hundred thirty-six million, five hundred forty-one thousand, six hundred thirteen".