16506026667 has 40 divisors (see below), whose sum is σ = 26569509120. Its totient is φ = 10151568000.

The previous prime is 16506026639. The next prime is 16506026683. The reversal of 16506026667 is 76662060561.

It is not a de Polignac number, because 16506026667 - 2¹⁹ = 16505502379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16506026687) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2354167 + ... + 2361167.

It is an arithmetic number, because the mean of its divisors is an integer number (664237728).

Almost surely, 2^16506026667 is an apocalyptic number.

16506026667 is a deficient number, since it is larger than the sum of its proper divisors (10063482453).

16506026667 is a wasteful number, since it uses less digits than its factorization.

16506026667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9265 (or 9256 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 16506026667 in words is "sixteen billion, five hundred six million, twenty-six thousand, six hundred sixty-seven".