20355414245 has 4 divisors (see below), whose sum is σ = 24426497100. Its totient is φ = 16284331392.

The previous prime is 20355414241. The next prime is 20355414259. The reversal of 20355414245 is 54241455302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54241455302 = 2 ⋅27120727651.

It can be written as a sum of positive squares in 2 ways, for example, as 11440655521 + 8914758724 = 106961^2 + 94418^2 .

It is a cyclic number.

It is not a de Polignac number, because 20355414245 - 2² = 20355414241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20355414241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2035541420 + ... + 2035541429.

It is an arithmetic number, because the mean of its divisors is an integer number (6106624275).

Almost surely, 2^20355414245 is an apocalyptic number.

It is an amenable number.

20355414245 is a deficient number, since it is larger than the sum of its proper divisors (4071082855).

20355414245 is an equidigital number, since it uses as much as digits as its factorization.

20355414245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071082854.

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 20355414245 its reverse (54241455302), we get a palindrome (74596869547).

The spelling of 20355414245 in words is "twenty billion, three hundred fifty-five million, four hundred fourteen thousand, two hundred forty-five".