16651150555 has 16 divisors (see below), whose sum is σ = 22650959520. Its totient is φ = 11649063168.

The previous prime is 16651150519. The next prime is 16651150561. The reversal of 16651150555 is 55505115661.

It is a cyclic number.

It is not a de Polignac number, because 16651150555 - 2²⁵ = 16617596123 is a prime.

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, 6740122 + ... + 6742591.

It is an arithmetic number, because the mean of its divisors is an integer number (1415684970).

Almost surely, 2^16651150555 is an apocalyptic number.

16651150555 is a deficient number, since it is larger than the sum of its proper divisors (5999808965).

16651150555 is a wasteful number, since it uses less digits than its factorization.

16651150555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13482750.

The product of its (nonzero) digits is 112500, while the sum is 40.

The spelling of 16651150555 in words is "sixteen billion, six hundred fifty-one million, one hundred fifty thousand, five hundred fifty-five".