20352112653405 has 64 divisors (see below), whose sum is σ = 35448701621760. Its totient is φ = 9910913089536.

The previous prime is 20352112653373. The next prime is 20352112653413. The reversal of 20352112653405 is 50435621125302.

It is not a de Polignac number, because 20352112653405 - 2⁵ = 20352112653373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35254969 + ... + 35827601.

It is an arithmetic number, because the mean of its divisors is an integer number (553885962840).

Almost surely, 2^{20352112653405} is an apocalyptic number.

It is an amenable number.

20352112653405 is a deficient number, since it is larger than the sum of its proper divisors (15096588968355).

20352112653405 is a wasteful number, since it uses less digits than its factorization.

20352112653405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574630.

The product of its (nonzero) digits is 216000, while the sum is 39.

Adding to 20352112653405 its reverse (50435621125302), we get a palindrome (70787733778707).

The spelling of 20352112653405 in words is "twenty trillion, three hundred fifty-two billion, one hundred twelve million, six hundred fifty-three thousand, four hundred five".