200135154494 has 64 divisors (see below), whose sum is σ = 334551859200. Its totient is φ = 89033817600.

The previous prime is 200135154493. The next prime is 200135154539. The reversal of 200135154494 is 494451531002.

200135154494 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200135154493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111868952 + ... + 111870740.

It is an arithmetic number, because the mean of its divisors is an integer number (5227372800).

Almost surely, 2^200135154494 is an apocalyptic number.

200135154494 is a deficient number, since it is larger than the sum of its proper divisors (134416704706).

200135154494 is a wasteful number, since it uses less digits than its factorization.

200135154494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409.

The product of its (nonzero) digits is 86400, while the sum is 38.

Adding to 200135154494 its reverse (494451531002), we get a palindrome (694586685496).

The spelling of 200135154494 in words is "two hundred billion, one hundred thirty-five million, one hundred fifty-four thousand, four hundred ninety-four".