16516097 has 8 divisors (see below), whose sum is σ = 18267816. Its totient is φ = 14833152.

The previous prime is 16516063. The next prime is 16516099. The reversal of 16516097 is 79061561.

It is a Cunningham number, because it is equal to 4064²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 2446096 + 14070001 = 1564^2 + 3751^2 .

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

It is not a de Polignac number, because 16516097 - 2¹⁰ = 16515073 is a prime.

It is a super-2 number, since 2×16516097² = 545562920226818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16516099) 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, 16688 + ... + 17649.

It is an arithmetic number, because the mean of its divisors is an integer number (2283477).

Almost surely, 2^16516097 is an apocalyptic number.

It is an amenable number.

16516097 is a deficient number, since it is larger than the sum of its proper divisors (1751719).

16516097 is a wasteful number, since it uses less digits than its factorization.

16516097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34387.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 16516097 is about 4064.0001230315. Note that the first 3 decimals coincide. The cubic root of 16516097 is about 254.6649296395.

The spelling of 16516097 in words is "sixteen million, five hundred sixteen thousand, ninety-seven".