16553940983 has 2 divisors, whose sum is σ = 16553940984. Its totient is φ = 16553940982.

The previous prime is 16553940959. The next prime is 16553941009. The reversal of 16553940983 is 38904935561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16553940983 - 2¹⁰ = 16553939959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16553990983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8276970491 + 8276970492.

It is an arithmetic number, because the mean of its divisors is an integer number (8276970492).

Almost surely, 2^16553940983 is an apocalyptic number.

16553940983 is a deficient number, since it is larger than the sum of its proper divisors (1).

16553940983 is an equidigital number, since it uses as much as digits as its factorization.

16553940983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3499200, while the sum is 53.

The spelling of 16553940983 in words is "sixteen billion, five hundred fifty-three million, nine hundred forty thousand, nine hundred eighty-three".