42200134661 has 4 divisors (see below), whose sum is σ = 44421194400. Its totient is φ = 39979074924.

The previous prime is 42200134643. The next prime is 42200134667. The reversal of 42200134661 is 16643100224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42200134661 - 2³⁰ = 41126392837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42200134667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110529841 + ... + 1110529878.

It is an arithmetic number, because the mean of its divisors is an integer number (11105298600).

Almost surely, 2^42200134661 is an apocalyptic number.

It is an amenable number.

42200134661 is a deficient number, since it is larger than the sum of its proper divisors (2221059739).

42200134661 is a wasteful number, since it uses less digits than its factorization.

42200134661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221059738.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 42200134661 its reverse (16643100224), we get a palindrome (58843234885).

The spelling of 42200134661 in words is "forty-two billion, two hundred million, one hundred thirty-four thousand, six hundred sixty-one".