20135415355 has 32 divisors (see below), whose sum is σ = 27143965440. Its totient is φ = 14210017920.

The previous prime is 20135415299. The next prime is 20135415367. The reversal of 20135415355 is 55351453102.

It is not a de Polignac number, because 20135415355 - 2¹¹ = 20135413307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20135415355.

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, 758212 + ... + 784318.

It is an arithmetic number, because the mean of its divisors is an integer number (848248920).

Almost surely, 2^20135415355 is an apocalyptic number.

20135415355 is a deficient number, since it is larger than the sum of its proper divisors (7008550085).

20135415355 is a wasteful number, since it uses less digits than its factorization.

20135415355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26539.

The product of its (nonzero) digits is 45000, while the sum is 34.

Adding to 20135415355 its reverse (55351453102), we get a palindrome (75486868457).

The spelling of 20135415355 in words is "twenty billion, one hundred thirty-five million, four hundred fifteen thousand, three hundred fifty-five".