16601613971 has 2 divisors, whose sum is σ = 16601613972. Its totient is φ = 16601613970.

The previous prime is 16601613929. The next prime is 16601613989. The reversal of 16601613971 is 17931610661.

16601613971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16601613971 - 2¹⁰ = 16601612947 is a prime.

It is a super-2 number, since 2×16601613971² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16601613911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8300806985 + 8300806986.

It is an arithmetic number, because the mean of its divisors is an integer number (8300806986).

Almost surely, 2^16601613971 is an apocalyptic number.

16601613971 is a deficient number, since it is larger than the sum of its proper divisors (1).

16601613971 is an equidigital number, since it uses as much as digits as its factorization.

16601613971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 41.

The spelling of 16601613971 in words is "sixteen billion, six hundred one million, six hundred thirteen thousand, nine hundred seventy-one".