2099600465 has 4 divisors (see below), whose sum is σ = 2519520564. Its totient is φ = 1679680368.

The previous prime is 2099600441. The next prime is 2099600473. The reversal of 2099600465 is 5640069902.

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 1055535121 + 1044065344 = 32489^2 + 32312^2 .

It is a cyclic number.

It is not a de Polignac number, because 2099600465 - 2¹⁰ = 2099599441 is a prime.

It is a super-2 number, since 2×2099600465² = 8816644225256432450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209960042 + ... + 209960051.

It is an arithmetic number, because the mean of its divisors is an integer number (629880141).

Almost surely, 2^2099600465 is an apocalyptic number.

It is an amenable number.

2099600465 is a deficient number, since it is larger than the sum of its proper divisors (419920099).

2099600465 is an equidigital number, since it uses as much as digits as its factorization.

2099600465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419920098.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 2099600465 is about 45821.3974579563. The cubic root of 2099600465 is about 1280.4979477419.

The spelling of 2099600465 in words is "two billion, ninety-nine million, six hundred thousand, four hundred sixty-five".