16878662653 has 12 divisors (see below), whose sum is σ = 18182485152. Its totient is φ = 15662037440.

The previous prime is 16878662639. The next prime is 16878662777. The reversal of 16878662653 is 35626687861.

It is not a de Polignac number, because 16878662653 - 2²¹ = 16876565501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16878665653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 390775 + ... + 431812.

It is an arithmetic number, because the mean of its divisors is an integer number (1515207096).

Almost surely, 2^16878662653 is an apocalyptic number.

It is an amenable number.

16878662653 is a deficient number, since it is larger than the sum of its proper divisors (1303822499).

16878662653 is an equidigital number, since it uses as much as digits as its factorization.

16878662653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822692 (or 822675 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 58.

The spelling of 16878662653 in words is "sixteen billion, eight hundred seventy-eight million, six hundred sixty-two thousand, six hundred fifty-three".