16563772106005 has 8 divisors (see below), whose sum is σ = 20009926035000. Its totient is φ = 13162084679616.

The previous prime is 16563772106003. The next prime is 16563772106069. The reversal of 16563772106005 is 50060127736561.

It can be written as a sum of positive squares in 4 ways, for example, as 1134948721 + 16562637157284 = 33689^2 + 4069722^2 .

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 16563772106005 - 2¹ = 16563772106003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16563772106005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16563772106003) 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, 11116624830 + ... + 11116626319.

It is an arithmetic number, because the mean of its divisors is an integer number (2501240754375).

Almost surely, 2^{16563772106005} is an apocalyptic number.

It is an amenable number.

16563772106005 is a deficient number, since it is larger than the sum of its proper divisors (3446153928995).

16563772106005 is a wasteful number, since it uses less digits than its factorization.

16563772106005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22233251303.

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 16563772106005 in words is "sixteen trillion, five hundred sixty-three billion, seven hundred seventy-two million, one hundred six thousand, five".