16143643355 has 16 divisors (see below), whose sum is σ = 22185338880. Its totient is φ = 11047184352.

The previous prime is 16143643283. The next prime is 16143643357. The reversal of 16143643355 is 55334634161.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16143643355 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16143643357) 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 15 ways as a sum of consecutive naturals, for example, 456515 + ... + 490604.

It is an arithmetic number, because the mean of its divisors is an integer number (1386583680).

Almost surely, 2^16143643355 is an apocalyptic number.

16143643355 is a deficient number, since it is larger than the sum of its proper divisors (6041695525).

16143643355 is an equidigital number, since it uses as much as digits as its factorization.

16143643355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947618.

The product of its digits is 388800, while the sum is 41.

The spelling of 16143643355 in words is "sixteen billion, one hundred forty-three million, six hundred forty-three thousand, three hundred fifty-five".