16316948553861 has 16 divisors (see below), whose sum is σ = 22567460601600. Its totient is φ = 10474245259968.

The previous prime is 16316948553847. The next prime is 16316948553931. The reversal of 16316948553861 is 16835584961361.

It is a happy number.

It is not a de Polignac number, because 16316948553861 - 2⁷ = 16316948553733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16316948553792 and 16316948553801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16316948553821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255487326 + ... + 255551183.

It is an arithmetic number, because the mean of its divisors is an integer number (1410466287600).

Almost surely, 2^{16316948553861} is an apocalyptic number.

It is an amenable number.

16316948553861 is a deficient number, since it is larger than the sum of its proper divisors (6250512047739).

16316948553861 is a wasteful number, since it uses less digits than its factorization.

16316948553861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511038908.

The product of its digits is 111974400, while the sum is 66.

The spelling of 16316948553861 in words is "sixteen trillion, three hundred sixteen billion, nine hundred forty-eight million, five hundred fifty-three thousand, eight hundred sixty-one".