20413153605455 has 32 divisors (see below), whose sum is σ = 27024164032320. Its totient is φ = 14706296478720.

The previous prime is 20413153605433. The next prime is 20413153605541. The reversal of 20413153605455 is 55450635131402.

It is a happy number.

It is not a de Polignac number, because 20413153605455 - 2⁸ = 20413153605199 is a prime.

It is a super-3 number, since 3×20413153605455³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153578816 + ... + 153711674.

It is an arithmetic number, because the mean of its divisors is an integer number (844505126010).

Almost surely, 2^{20413153605455} is an apocalyptic number.

20413153605455 is a deficient number, since it is larger than the sum of its proper divisors (6611010426865).

20413153605455 is a wasteful number, since it uses less digits than its factorization.

20413153605455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190571.

The product of its (nonzero) digits is 1080000, while the sum is 44.

Adding to 20413153605455 its reverse (55450635131402), we get a palindrome (75863788736857).

The spelling of 20413153605455 in words is "twenty trillion, four hundred thirteen billion, one hundred fifty-three million, six hundred five thousand, four hundred fifty-five".