20460561234045 has 16 divisors (see below), whose sum is σ = 32743099445760. Its totient is φ = 10910232167744.

The previous prime is 20460561234041. The next prime is 20460561234053. The reversal of 20460561234045 is 54043216506402.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20460561234045 - 2² = 20460561234041 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20460561233988 and 20460561234006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20460561234041) 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, 129115494 + ... + 129273863.

It is an arithmetic number, because the mean of its divisors is an integer number (2046443715360).

Almost surely, 2^{20460561234045} is an apocalyptic number.

It is an amenable number.

20460561234045 is a deficient number, since it is larger than the sum of its proper divisors (12282538211715).

20460561234045 is a wasteful number, since it uses less digits than its factorization.

20460561234045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258394644.

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 20460561234045 in words is "twenty trillion, four hundred sixty billion, five hundred sixty-one million, two hundred thirty-four thousand, forty-five".