20541304365 has 16 divisors (see below), whose sum is σ = 33031248000. Its totient is φ = 10900308672.

The previous prime is 20541304337. The next prime is 20541304373. The reversal of 20541304365 is 56340314502.

It is not a de Polignac number, because 20541304365 - 2⁸ = 20541304109 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3437770 + ... + 3443739.

It is an arithmetic number, because the mean of its divisors is an integer number (2064453000).

Almost surely, 2^20541304365 is an apocalyptic number.

It is an amenable number.

20541304365 is a deficient number, since it is larger than the sum of its proper divisors (12489943635).

20541304365 is a wasteful number, since it uses less digits than its factorization.

20541304365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6881716.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 20541304365 its reverse (56340314502), we get a palindrome (76881618867).

The spelling of 20541304365 in words is "twenty billion, five hundred forty-one million, three hundred four thousand, three hundred sixty-five".