16564202755 has 16 divisors (see below), whose sum is σ = 20928034080. Its totient is φ = 12551023872.

The previous prime is 16564202749. The next prime is 16564202761. The reversal of 16564202755 is 55720246561.

It is an interprime number because it is at equal distance from previous prime (16564202749) and next prime (16564202761).

It is a cyclic number.

It is not a de Polignac number, because 16564202755 - 2⁵ = 16564202723 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, 451357 + ... + 486673.

It is an arithmetic number, because the mean of its divisors is an integer number (1308002130).

Almost surely, 2^16564202755 is an apocalyptic number.

16564202755 is a deficient number, since it is larger than the sum of its proper divisors (4363831325).

16564202755 is a wasteful number, since it uses less digits than its factorization.

16564202755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40278.

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 16564202755 in words is "sixteen billion, five hundred sixty-four million, two hundred two thousand, seven hundred fifty-five".