16771620255 has 32 divisors (see below), whose sum is σ = 28961634240. Its totient is φ = 8238842880.

The previous prime is 16771620253. The next prime is 16771620277. The reversal of 16771620255 is 55202617761.

It is a happy number.

It is not a de Polignac number, because 16771620255 - 2¹ = 16771620253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16771620253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3390 + ... + 183179.

It is an arithmetic number, because the mean of its divisors is an integer number (905051070).

Almost surely, 2^16771620255 is an apocalyptic number.

16771620255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16771620255 is a deficient number, since it is larger than the sum of its proper divisors (12190013985).

16771620255 is a wasteful number, since it uses less digits than its factorization.

16771620255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187051.

The product of its (nonzero) digits is 176400, while the sum is 42.

The spelling of 16771620255 in words is "sixteen billion, seven hundred seventy-one million, six hundred twenty thousand, two hundred fifty-five".