16601265255 has 32 divisors (see below), whose sum is σ = 28160573184. Its totient is φ = 8322494976.

The previous prime is 16601265253. The next prime is 16601265271. The reversal of 16601265255 is 55256210661.

It is a happy number.

It is not a de Polignac number, because 16601265255 - 2¹ = 16601265253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16601265253) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 159324 + ... + 242046.

It is an arithmetic number, because the mean of its divisors is an integer number (880017912).

Almost surely, 2^16601265255 is an apocalyptic number.

16601265255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16601265255 is a deficient number, since it is larger than the sum of its proper divisors (11559307929).

16601265255 is a wasteful number, since it uses less digits than its factorization.

16601265255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83535.

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 16601265255 in words is "sixteen billion, six hundred one million, two hundred sixty-five thousand, two hundred fifty-five".