20510422455541 has 8 divisors (see below), whose sum is σ = 21421136738880. Its totient is φ = 19601287904352.

The previous prime is 20510422455539. The next prime is 20510422455569. The reversal of 20510422455541 is 14555422401502.

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 20510422455541 - 2¹ = 20510422455539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20510422455494 and 20510422455503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20510422455521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394906495 + ... + 394958428.

It is an arithmetic number, because the mean of its divisors is an integer number (2677642092360).

Almost surely, 2^{20510422455541} is an apocalyptic number.

It is an amenable number.

20510422455541 is a deficient number, since it is larger than the sum of its proper divisors (910714283339).

20510422455541 is a wasteful number, since it uses less digits than its factorization.

20510422455541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789866075.

The product of its (nonzero) digits is 320000, while the sum is 40.

The spelling of 20510422455541 in words is "twenty trillion, five hundred ten billion, four hundred twenty-two million, four hundred fifty-five thousand, five hundred forty-one".