200147969641 has 9 divisors (see below), whose sum is σ = 200748807063. Its totient is φ = 199548929160.

The previous prime is 200147969591. The next prime is 200147969647. The reversal of 200147969641 is 146969741002.

The square root of 200147969641 is 447379.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 26709038041 + 173438931600 = 163429^2 + 416460^2 .

It is a de Polignac number, because none of the positive numbers 2^k-200147969641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200147969647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 282295795 + ... + 282296503.

It is an arithmetic number, because the mean of its divisors is an integer number (22305423007).

Almost surely, 2^200147969641 is an apocalyptic number.

200147969641 is the 447379-th square number.

200147969641 is the 223690-th centered octagonal number.

It is an amenable number.

200147969641 is a deficient number, since it is larger than the sum of its proper divisors (600837422).

200147969641 is an frugal number, since it uses more digits than its factorization.

200147969641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680 (or 1340 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

Multiplying 200147969641 by its sum of digits (49), we get a square (9807250512409 = 3131653²).

The spelling of 200147969641 in words is "two hundred billion, one hundred forty-seven million, nine hundred sixty-nine thousand, six hundred forty-one".