20240261504605 has 16 divisors (see below), whose sum is σ = 25566760540800. Its totient is φ = 15339919008960.

The previous prime is 20240261504581. The next prime is 20240261504663. The reversal of 20240261504605 is 50640516204202.

It is a happy number.

It is not a de Polignac number, because 20240261504605 - 2¹¹ = 20240261502557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33647175 + ... + 34243435.

It is an arithmetic number, because the mean of its divisors is an integer number (1597922533800).

Almost surely, 2^{20240261504605} is an apocalyptic number.

It is an amenable number.

20240261504605 is a deficient number, since it is larger than the sum of its proper divisors (5326499036195).

20240261504605 is a wasteful number, since it uses less digits than its factorization.

20240261504605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953604.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 20240261504605 its reverse (50640516204202), we get a palindrome (70880777708807).

The spelling of 20240261504605 in words is "twenty trillion, two hundred forty billion, two hundred sixty-one million, five hundred four thousand, six hundred five".