16076357509 has 4 divisors (see below), whose sum is σ = 16079514220. Its totient is φ = 16073200800.

The previous prime is 16076357503. The next prime is 16076357527. The reversal of 16076357509 is 90575367061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90575367061 = 25057 ⋅3614773.

It can be written as a sum of positive squares in 2 ways, for example, as 533748609 + 15542608900 = 23103^2 + 124670^2 .

It is a cyclic number.

It is not a de Polignac number, because 16076357509 - 2³³ = 7486422917 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 (16076357503) 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, 1570704 + ... + 1580905.

It is an arithmetic number, because the mean of its divisors is an integer number (4019878555).

Almost surely, 2^16076357509 is an apocalyptic number.

It is an amenable number.

16076357509 is a deficient number, since it is larger than the sum of its proper divisors (3156711).

16076357509 is an equidigital number, since it uses as much as digits as its factorization.

16076357509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3156710.

The product of its (nonzero) digits is 1190700, while the sum is 49.

The spelling of 16076357509 in words is "sixteen billion, seventy-six million, three hundred fifty-seven thousand, five hundred nine".