16516007 has 4 divisors (see below), whose sum is σ = 16667640. Its totient is φ = 16364376.

The previous prime is 16515973. The next prime is 16516009. The reversal of 16516007 is 70061561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70061561 = 379 ⋅184859.

It is a cyclic number.

It is not a de Polignac number, because 16516007 - 2⁶ = 16515943 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 (16516009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75653 + ... + 75870.

It is an arithmetic number, because the mean of its divisors is an integer number (4166910).

Almost surely, 2^16516007 is an apocalyptic number.

16516007 is a deficient number, since it is larger than the sum of its proper divisors (151633).

16516007 is a wasteful number, since it uses less digits than its factorization.

16516007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151632.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 16516007 is about 4063.9890501821. The cubic root of 16516007 is about 254.6644670628.

Adding to 16516007 its reverse (70061561), we get a palindrome (86577568).

The spelling of 16516007 in words is "sixteen million, five hundred sixteen thousand, seven".