200147969640 has 128 divisors (see below), whose sum is σ = 605342937600. Its totient is φ = 52938792960.

The previous prime is 200147969591. The next prime is 200147969647. The reversal of 200147969640 is 46969741002.

It is a happy number.

200147969640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 447379²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 200147969640.

It is not an unprimeable number, because it can be changed into a prime (200147969647) 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, 8936376 + ... + 8958744.

It is an arithmetic number, because the mean of its divisors is an integer number (4729241700).

Almost surely, 2^200147969640 is an apocalyptic number.

200147969640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200147969640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302671468800).

200147969640 is an abundant number, since it is smaller than the sum of its proper divisors (405194967960).

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

200147969640 is a wasteful number, since it uses less digits than its factorization.

200147969640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22987 (or 22983 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 200147969640 in words is "two hundred billion, one hundred forty-seven million, nine hundred sixty-nine thousand, six hundred forty".