16610516071 has 4 divisors (see below), whose sum is σ = 16611519112. Its totient is φ = 16609513032.

The previous prime is 16610516059. The next prime is 16610516081. The reversal of 16610516071 is 17061501661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17061501661 = 17209 ⋅991429.

It is a cyclic number.

It is not a de Polignac number, because 16610516071 - 2¹⁵ = 16610483303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16610516011) 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, 476256 + ... + 509941.

It is an arithmetic number, because the mean of its divisors is an integer number (4152879778).

Almost surely, 2^16610516071 is an apocalyptic number.

16610516071 is a deficient number, since it is larger than the sum of its proper divisors (1003041).

16610516071 is an equidigital number, since it uses as much as digits as its factorization.

16610516071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003040.

The product of its (nonzero) digits is 7560, while the sum is 34.

The spelling of 16610516071 in words is "sixteen billion, six hundred ten million, five hundred sixteen thousand, seventy-one".