16506217016 has 64 divisors (see below), whose sum is σ = 33834134400. Its totient is φ = 7522720128.

The previous prime is 16506216983. The next prime is 16506217061. The reversal of 16506217016 is 61071260561.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419066 + ... + 456758.

It is an arithmetic number, because the mean of its divisors is an integer number (528658350).

Almost surely, 2^16506217016 is an apocalyptic number.

It is an amenable number.

16506217016 is an abundant number, since it is smaller than the sum of its proper divisors (17327917384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16506217016 is a wasteful number, since it uses less digits than its factorization.

16506217016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37828 (or 37824 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

Adding to 16506217016 its reverse (61071260561), we get a palindrome (77577477577).

The spelling of 16506217016 in words is "sixteen billion, five hundred six million, two hundred seventeen thousand, sixteen".