16655056501 has 2 divisors, whose sum is σ = 16655056502. Its totient is φ = 16655056500.

The previous prime is 16655056489. The next prime is 16655056541. The reversal of 16655056501 is 10565055661.

It is an a-pointer prime, because the next prime (16655056541) can be obtained adding 16655056501 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14841574276 + 1813482225 = 121826^2 + 42585^2 .

It is a cyclic number.

It is not a de Polignac number, because 16655056501 - 2¹³ = 16655048309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16655056541) 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 as a sum of consecutive naturals, namely, 8327528250 + 8327528251.

It is an arithmetic number, because the mean of its divisors is an integer number (8327528251).

Almost surely, 2^16655056501 is an apocalyptic number.

It is an amenable number.

16655056501 is a deficient number, since it is larger than the sum of its proper divisors (1).

16655056501 is an equidigital number, since it uses as much as digits as its factorization.

16655056501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 16655056501 in words is "sixteen billion, six hundred fifty-five million, fifty-six thousand, five hundred one".