16306613081 has 4 divisors (see below), whose sum is σ = 17789032464. Its totient is φ = 14824193700.

The previous prime is 16306613051. The next prime is 16306613093. The reversal of 16306613081 is 18031660361.

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.

It is a cyclic number.

It is not a de Polignac number, because 16306613081 - 2¹⁸ = 16306350937 is a prime.

It is a super-2 number, since 2×16306613081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16306613041) 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, 741209675 + ... + 741209696.

It is an arithmetic number, because the mean of its divisors is an integer number (4447258116).

Almost surely, 2^16306613081 is an apocalyptic number.

16306613081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16306613081 is a deficient number, since it is larger than the sum of its proper divisors (1482419383).

16306613081 is a wasteful number, since it uses less digits than its factorization.

16306613081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482419382.

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 16306613081 in words is "sixteen billion, three hundred six million, six hundred thirteen thousand, eighty-one".