220615401601 has 8 divisors (see below), whose sum is σ = 252165241664. Its totient is φ = 189073900080.

The previous prime is 220615401569. The next prime is 220615401623. The reversal of 220615401601 is 106104516022.

220615401601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220615401601 - 2⁵ = 220615401569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220615401601.

It is not an unprimeable number, because it can be changed into a prime (220615401641) 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 7 ways as a sum of consecutive naturals, for example, 2027835 + ... + 2133856.

It is an arithmetic number, because the mean of its divisors is an integer number (31520655208).

Almost surely, 2^220615401601 is an apocalyptic number.

It is an amenable number.

220615401601 is a deficient number, since it is larger than the sum of its proper divisors (31549840063).

220615401601 is an equidigital number, since it uses as much as digits as its factorization.

220615401601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4169271.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 220615401601 its reverse (106104516022), we get a palindrome (326719917623).

The spelling of 220615401601 in words is "two hundred twenty billion, six hundred fifteen million, four hundred one thousand, six hundred one".