20461350331255 has 16 divisors (see below), whose sum is σ = 25998976370304. Its totient is φ = 15405585569280.

The previous prime is 20461350331229. The next prime is 20461350331259. The reversal of 20461350331255 is 55213305316402.

It is not a de Polignac number, because 20461350331255 - 2³⁵ = 20426990592887 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 (20461350331259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2573376 + ... + 6895285.

It is an arithmetic number, because the mean of its divisors is an integer number (1624936023144).

Almost surely, 2^{20461350331255} is an apocalyptic number.

20461350331255 is a deficient number, since it is larger than the sum of its proper divisors (5537626039049).

20461350331255 is a wasteful number, since it uses less digits than its factorization.

20461350331255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9494106.

The product of its (nonzero) digits is 324000, while the sum is 40.

Adding to 20461350331255 its reverse (55213305316402), we get a palindrome (75674655647657).

The spelling of 20461350331255 in words is "twenty trillion, four hundred sixty-one billion, three hundred fifty million, three hundred thirty-one thousand, two hundred fifty-five".