215700560441 has 4 divisors (see below), whose sum is σ = 215723509392. Its totient is φ = 215677611492.

The previous prime is 215700560423. The next prime is 215700560447. The reversal of 215700560441 is 144065007512.

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 215700560441 - 2⁶ = 215700560377 is a prime.

It is a super-2 number, since 2×215700560441² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (215700560447) 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, 11460371 + ... + 11479176.

It is an arithmetic number, because the mean of its divisors is an integer number (53930877348).

Almost surely, 2^215700560441 is an apocalyptic number.

It is an amenable number.

215700560441 is a deficient number, since it is larger than the sum of its proper divisors (22948951).

215700560441 is an equidigital number, since it uses as much as digits as its factorization.

215700560441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22948950.

The product of its (nonzero) digits is 33600, while the sum is 35.

Adding to 215700560441 its reverse (144065007512), we get a palindrome (359765567953).

The spelling of 215700560441 in words is "two hundred fifteen billion, seven hundred million, five hundred sixty thousand, four hundred forty-one".