15601420220206 has 8 divisors (see below), whose sum is σ = 23402160438624. Its totient is φ = 7800700074000.

The previous prime is 15601420220203. The next prime is 15601420220207. The reversal of 15601420220206 is 60202202410651.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15601420220203) 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 3 ways as a sum of consecutive naturals, for example, 2895295 + ... + 6291706.

It is an arithmetic number, because the mean of its divisors is an integer number (2925270054828).

Almost surely, 2^{15601420220206} is an apocalyptic number.

15601420220206 is a deficient number, since it is larger than the sum of its proper divisors (7800740218418).

15601420220206 is an equidigital number, since it uses as much as digits as its factorization.

15601420220206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10036106.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 15601420220206 its reverse (60202202410651), we get a palindrome (75803622630857).

The spelling of 15601420220206 in words is "fifteen trillion, six hundred one billion, four hundred twenty million, two hundred twenty thousand, two hundred six".