20632407365 has 16 divisors (see below), whose sum is σ = 25253263728. Its totient is φ = 16177015296.

The previous prime is 20632407353. The next prime is 20632407371. The reversal of 20632407365 is 56370423602.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1389723841 + 19242683524 = 37279^2 + 138718^2 .

It is a cyclic number.

It is not a de Polignac number, because 20632407365 - 2⁴ = 20632407349 is a prime.

It is a Duffinian number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 206759 + ... + 289851.

It is an arithmetic number, because the mean of its divisors is an integer number (1578328983).

Almost surely, 2^20632407365 is an apocalyptic number.

It is an amenable number.

20632407365 is a deficient number, since it is larger than the sum of its proper divisors (4620856363).

20632407365 is an equidigital number, since it uses as much as digits as its factorization.

20632407365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84088.

The product of its (nonzero) digits is 181440, while the sum is 38.

The spelling of 20632407365 in words is "twenty billion, six hundred thirty-two million, four hundred seven thousand, three hundred sixty-five".