2120006465 has 8 divisors (see below), whose sum is σ = 2548244328. Its totient is φ = 1693180800.

The previous prime is 2120006431. The next prime is 2120006477. The reversal of 2120006465 is 5646000212.

It can be written as a sum of positive squares in 4 ways, for example, as 1162537216 + 957469249 = 34096^2 + 30943^2 .

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

It is not a de Polignac number, because 2120006465 - 2¹⁰ = 2120005441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349742 + ... + 355751.

It is an arithmetic number, because the mean of its divisors is an integer number (318530541).

Almost surely, 2^2120006465 is an apocalyptic number.

It is an amenable number.

2120006465 is a deficient number, since it is larger than the sum of its proper divisors (428237863).

2120006465 is an equidigital number, since it uses as much as digits as its factorization.

2120006465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706099.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2120006465 is about 46043.5279382456. The cubic root of 2120006465 is about 1284.6329635513.

Adding to 2120006465 its reverse (5646000212), we get a palindrome (7766006677).

The spelling of 2120006465 in words is "two billion, one hundred twenty million, six thousand, four hundred sixty-five".