16302771993 has 8 divisors (see below), whose sum is σ = 21737620800. Its totient is φ = 10868218928.

The previous prime is 16302771959. The next prime is 16302772021. The reversal of 16302771993 is 39917720361.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16302771993 - 2⁶ = 16302771929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16302721993) 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 7 ways as a sum of consecutive naturals, for example, 165043 + ... + 244631.

It is an arithmetic number, because the mean of its divisors is an integer number (2717202600).

Almost surely, 2^16302771993 is an apocalyptic number.

It is an amenable number.

16302771993 is a deficient number, since it is larger than the sum of its proper divisors (5434848807).

16302771993 is an equidigital number, since it uses as much as digits as its factorization.

16302771993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147871.

The product of its (nonzero) digits is 428652, while the sum is 48.

The spelling of 16302771993 in words is "sixteen billion, three hundred two million, seven hundred seventy-one thousand, nine hundred ninety-three".