200154640032640 has 96 divisors (see below), whose sum is σ = 505004087815560. Its totient is φ = 75848074030080.

The previous prime is 200154640032587. The next prime is 200154640032647. The reversal of 200154640032640 is 46230046451002.

It is a self number, because there is not a number n which added to its sum of digits gives 200154640032640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200154640032647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 432929106 + ... + 433391185.

Almost surely, 2^{200154640032640} is an apocalyptic number.

200154640032640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200154640032640 is an abundant number, since it is smaller than the sum of its proper divisors (304849447782920).

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

200154640032640 is an equidigital number, since it uses as much as digits as its factorization.

200154640032640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866320348 (or 866320317 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 200154640032640 its reverse (46230046451002), we get a palindrome (246384686483642).

The spelling of 200154640032640 in words is "two hundred trillion, one hundred fifty-four billion, six hundred forty million, thirty-two thousand, six hundred forty".