20461662232523 has 16 divisors (see below), whose sum is σ = 20787001872000. Its totient is φ = 20136913860096.

The previous prime is 20461662232507. The next prime is 20461662232559. The reversal of 20461662232523 is 32523226616402.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20461662232523 - 2⁴ = 20461662232507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20461662232223) 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, 835191728 + ... + 835216226.

It is an arithmetic number, because the mean of its divisors is an integer number (1299187617000).

Almost surely, 2^{20461662232523} is an apocalyptic number.

20461662232523 is a deficient number, since it is larger than the sum of its proper divisors (325339639477).

20461662232523 is a wasteful number, since it uses less digits than its factorization.

20461662232523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36026.

The product of its (nonzero) digits is 1244160, while the sum is 44.

Adding to 20461662232523 its reverse (32523226616402), we get a palindrome (52984888848925).

The spelling of 20461662232523 in words is "twenty trillion, four hundred sixty-one billion, six hundred sixty-two million, two hundred thirty-two thousand, five hundred twenty-three".