16306880749 has 4 divisors (see below), whose sum is σ = 16392257280. Its totient is φ = 16221504220.

The previous prime is 16306880729. The next prime is 16306880753. The reversal of 16306880749 is 94708860361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94708860361 = 17 ⋅5571109433.

It is a cyclic number.

It is not a de Polignac number, because 16306880749 - 2⁹ = 16306880237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16306880696 and 16306880705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16306880729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42687979 + ... + 42688360.

It is an arithmetic number, because the mean of its divisors is an integer number (4098064320).

Almost surely, 2^16306880749 is an apocalyptic number.

It is an amenable number.

16306880749 is a deficient number, since it is larger than the sum of its proper divisors (85376531).

16306880749 is an equidigital number, since it uses as much as digits as its factorization.

16306880749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85376530.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 16306880749 in words is "sixteen billion, three hundred six million, eight hundred eighty thousand, seven hundred forty-nine".