20564102141 has 8 divisors (see below), whose sum is σ = 22664841024. Its totient is φ = 18501909120.

The previous prime is 20564102107. The next prime is 20564102171. The reversal of 20564102141 is 14120146502.

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 20564102141 - 2¹⁸ = 20563839997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20564102141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20564102171) 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, 9635345 + ... + 9637478.

It is an arithmetic number, because the mean of its divisors is an integer number (2833105128).

Almost surely, 2^20564102141 is an apocalyptic number.

It is an amenable number.

20564102141 is a deficient number, since it is larger than the sum of its proper divisors (2100738883).

20564102141 is a wasteful number, since it uses less digits than its factorization.

20564102141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19272931.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 20564102141 its reverse (14120146502), we get a palindrome (34684248643).

The spelling of 20564102141 in words is "twenty billion, five hundred sixty-four million, one hundred two thousand, one hundred forty-one".