20325705461 has 8 divisors (see below), whose sum is σ = 21523440600. Its totient is φ = 19128204288.

The previous prime is 20325705443. The next prime is 20325705473. The reversal of 20325705461 is 16450752302.

It can be written as a sum of positive squares in 4 ways, for example, as 15551586436 + 4774119025 = 124706^2 + 69095^2 .

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 20325705461 - 2¹⁰ = 20325704437 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 (20325705401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139565 + ... + 245213.

It is an arithmetic number, because the mean of its divisors is an integer number (2690430075).

Almost surely, 2^20325705461 is an apocalyptic number.

It is an amenable number.

20325705461 is a deficient number, since it is larger than the sum of its proper divisors (1197735139).

20325705461 is a wasteful number, since it uses less digits than its factorization.

20325705461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116983.

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 20325705461 in words is "twenty billion, three hundred twenty-five million, seven hundred five thousand, four hundred sixty-one".