220133125657 has 4 divisors (see below), whose sum is σ = 220404560656. Its totient is φ = 219861690660.

The previous prime is 220133125621. The next prime is 220133125661. The reversal of 220133125657 is 756521331022.

It is a happy number.

220133125657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-220133125657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220133125697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135716283 + ... + 135717904.

It is an arithmetic number, because the mean of its divisors is an integer number (55101140164).

Almost surely, 2^220133125657 is an apocalyptic number.

It is an amenable number.

220133125657 is a deficient number, since it is larger than the sum of its proper divisors (271434999).

220133125657 is an equidigital number, since it uses as much as digits as its factorization.

220133125657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271434998.

The product of its (nonzero) digits is 75600, while the sum is 37.

Adding to 220133125657 its reverse (756521331022), we get a palindrome (976654456679).

The spelling of 220133125657 in words is "two hundred twenty billion, one hundred thirty-three million, one hundred twenty-five thousand, six hundred fifty-seven".