16615376873 has 2 divisors, whose sum is σ = 16615376874. Its totient is φ = 16615376872.

The previous prime is 16615376867. The next prime is 16615376909. The reversal of 16615376873 is 37867351661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12489627049 + 4125749824 = 111757^2 + 64232^2 .

It is a cyclic number.

It is not a de Polignac number, because 16615376873 - 2¹⁶ = 16615311337 is a prime.

It is not a weakly prime, because it can be changed into another prime (16615376573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8307688436 + 8307688437.

It is an arithmetic number, because the mean of its divisors is an integer number (8307688437).

Almost surely, 2^16615376873 is an apocalyptic number.

It is an amenable number.

16615376873 is a deficient number, since it is larger than the sum of its proper divisors (1).

16615376873 is an equidigital number, since it uses as much as digits as its factorization.

16615376873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 53.

The spelling of 16615376873 in words is "sixteen billion, six hundred fifteen million, three hundred seventy-six thousand, eight hundred seventy-three".