16220171043607 has 8 divisors (see below), whose sum is σ = 16945620827040. Its totient is φ = 15505796829600.

The previous prime is 16220171043589. The next prime is 16220171043631. The reversal of 16220171043607 is 70634017102261.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16220171043607 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16220171043607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16220171443607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2768889363 + ... + 2768895220.

It is an arithmetic number, because the mean of its divisors is an integer number (2118202603380).

Almost surely, 2^{16220171043607} is an apocalyptic number.

16220171043607 is a deficient number, since it is larger than the sum of its proper divisors (725449783433).

16220171043607 is a wasteful number, since it uses less digits than its factorization.

16220171043607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5537784713.

The product of its (nonzero) digits is 84672, while the sum is 40.

Adding to 16220171043607 its reverse (70634017102261), we get a palindrome (86854188145868).

The spelling of 16220171043607 in words is "sixteen trillion, two hundred twenty billion, one hundred seventy-one million, forty-three thousand, six hundred seven".