2616220465 has 8 divisors (see below), whose sum is σ = 3171830760. Its totient is φ = 2071398912.

The previous prime is 2616220459. The next prime is 2616220483. The reversal of 2616220465 is 5640226162.

It can be written as a sum of positive squares in 4 ways, for example, as 144937521 + 2471282944 = 12039^2 + 49712^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2616220465 - 2²³ = 2607831857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2616220465.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2696650 + ... + 2697619.

It is an arithmetic number, because the mean of its divisors is an integer number (396478845).

Almost surely, 2^2616220465 is an apocalyptic number.

It is an amenable number.

2616220465 is a deficient number, since it is larger than the sum of its proper divisors (555610295).

2616220465 is an equidigital number, since it uses as much as digits as its factorization.

2616220465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5394371.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 2616220465 is about 51149.0025806955. The cubic root of 2616220465 is about 1377.9224611484.

The spelling of 2616220465 in words is "two billion, six hundred sixteen million, two hundred twenty thousand, four hundred sixty-five".