16506874759 has 2 divisors, whose sum is σ = 16506874760. Its totient is φ = 16506874758.

The previous prime is 16506874757. The next prime is 16506874793. The reversal of 16506874759 is 95747860561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16506874759 - 2¹ = 16506874757 is a prime.

It is a super-2 number, since 2×16506874759² (a number of 21 digits) contains 22 as substring.

Together with 16506874757, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16506874757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8253437379 + 8253437380.

It is an arithmetic number, because the mean of its divisors is an integer number (8253437380).

Almost surely, 2^16506874759 is an apocalyptic number.

16506874759 is a deficient number, since it is larger than the sum of its proper divisors (1).

16506874759 is an equidigital number, since it uses as much as digits as its factorization.

16506874759 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12700800, while the sum is 58.

The spelling of 16506874759 in words is "sixteen billion, five hundred six million, eight hundred seventy-four thousand, seven hundred fifty-nine".