16406601405011 has 4 divisors (see below), whose sum is σ = 16406624517192. Its totient is φ = 16406578292832.

The previous prime is 16406601405001. The next prime is 16406601405013. The reversal of 16406601405011 is 11050410660461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16406601405011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16406601405013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10456406 + ... + 11922651.

It is an arithmetic number, because the mean of its divisors is an integer number (4101656129298).

Almost surely, 2^{16406601405011} is an apocalyptic number.

16406601405011 is a deficient number, since it is larger than the sum of its proper divisors (23112181).

16406601405011 is an equidigital number, since it uses as much as digits as its factorization.

16406601405011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23112180.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 16406601405011 in words is "sixteen trillion, four hundred six billion, six hundred one million, four hundred five thousand, eleven".