20240261504621 has 8 divisors (see below), whose sum is σ = 20246696628480. Its totient is φ = 20233826798688.

The previous prime is 20240261504581. The next prime is 20240261504663. The reversal of 20240261504621 is 12640516204202.

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

It is a cyclic number.

It is not a de Polignac number, because 20240261504621 - 2⁶ = 20240261504557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20240261504921) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 117386945 + ... + 117559241.

It is an arithmetic number, because the mean of its divisors is an integer number (2530837078560).

Almost surely, 2^{20240261504621} is an apocalyptic number.

It is an amenable number.

20240261504621 is a deficient number, since it is larger than the sum of its proper divisors (6435123859).

20240261504621 is a wasteful number, since it uses less digits than its factorization.

20240261504621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208963.

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 20240261504621 its reverse (12640516204202), we get a palindrome (32880777708823).

The spelling of 20240261504621 in words is "twenty trillion, two hundred forty billion, two hundred sixty-one million, five hundred four thousand, six hundred twenty-one".