20135415354 has 16 divisors (see below), whose sum is σ = 40272284640. Its totient is φ = 6711562800.

The previous prime is 20135415299. The next prime is 20135415367. The reversal of 20135415354 is 45351453102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218004 + ... + 296304.

It is an arithmetic number, because the mean of its divisors is an integer number (2517017790).

Almost surely, 2^20135415354 is an apocalyptic number.

20135415354 is an abundant number, since it is smaller than the sum of its proper divisors (20136869286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20135415354 is a wasteful number, since it uses less digits than its factorization.

20135415354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121165.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 20135415354 its reverse (45351453102), we get a palindrome (65486868456).

The spelling of 20135415354 in words is "twenty billion, one hundred thirty-five million, four hundred fifteen thousand, three hundred fifty-four".