21332600065045 has 16 divisors (see below), whose sum is σ = 26425472919552. Its totient is φ = 16515202106880.

The previous prime is 21332600065039. The next prime is 21332600065141. The reversal of 21332600065045 is 54056000623312.

It is not a de Polignac number, because 21332600065045 - 2⁷ = 21332600064917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21332600064995 and 21332600065013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5765509 + ... + 8712421.

It is an arithmetic number, because the mean of its divisors is an integer number (1651592057472).

Almost surely, 2^{21332600065045} is an apocalyptic number.

It is an amenable number.

21332600065045 is a deficient number, since it is larger than the sum of its proper divisors (5092872854507).

21332600065045 is a wasteful number, since it uses less digits than its factorization.

21332600065045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2993652.

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 21332600065045 its reverse (54056000623312), we get a palindrome (75388600688357).

The spelling of 21332600065045 in words is "twenty-one trillion, three hundred thirty-two billion, six hundred million, sixty-five thousand, forty-five".