2616297855209 has 4 divisors (see below), whose sum is σ = 2706515022660. Its totient is φ = 2526080687760.

The previous prime is 2616297855179. The next prime is 2616297855221. The reversal of 2616297855209 is 9025587926162.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1881382573225 + 734915281984 = 1371635^2 + 857272^2 .

It is a cyclic number.

It is not a de Polignac number, because 2616297855209 - 2⁸ = 2616297854953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2616297855239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45108583682 + ... + 45108583739.

It is an arithmetic number, because the mean of its divisors is an integer number (676628755665).

Almost surely, 2^{2616297855209} is an apocalyptic number.

2616297855209 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2616297855209 is a deficient number, since it is larger than the sum of its proper divisors (90217167451).

2616297855209 is an equidigital number, since it uses as much as digits as its factorization.

2616297855209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90217167450.

The product of its (nonzero) digits is 32659200, while the sum is 62.

The spelling of 2616297855209 in words is "two trillion, six hundred sixteen billion, two hundred ninety-seven million, eight hundred fifty-five thousand, two hundred nine".