20413321600355 has 16 divisors (see below), whose sum is σ = 24523619180544. Its totient is φ = 16312236202080.

The previous prime is 20413321600307. The next prime is 20413321600393. The reversal of 20413321600355 is 55300612331402.

It is a happy number.

It is not a de Polignac number, because 20413321600355 - 2¹⁶ = 20413321534819 is a prime.

It is a super-2 number, since 2×20413321600355² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255436334 + ... + 255516236.

It is an arithmetic number, because the mean of its divisors is an integer number (1532726198784).

Almost surely, 2^{20413321600355} is an apocalyptic number.

20413321600355 is a deficient number, since it is larger than the sum of its proper divisors (4110297580189).

20413321600355 is an equidigital number, since it uses as much as digits as its factorization.

20413321600355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136906.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 20413321600355 its reverse (55300612331402), we get a palindrome (75713933931757).

The spelling of 20413321600355 in words is "twenty trillion, four hundred thirteen billion, three hundred twenty-one million, six hundred thousand, three hundred fifty-five".