20145122463 has 8 divisors (see below), whose sum is σ = 26878680576. Its totient is φ = 13420823000.

The previous prime is 20145122461. The next prime is 20145122509. The reversal of 20145122463 is 36422154102.

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 20145122463 - 2¹ = 20145122461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20145122463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20145122461) 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, 2309583 + ... + 2318288.

It is an arithmetic number, because the mean of its divisors is an integer number (3359835072).

Almost surely, 2^20145122463 is an apocalyptic number.

20145122463 is a deficient number, since it is larger than the sum of its proper divisors (6733558113).

20145122463 is a wasteful number, since it uses less digits than its factorization.

20145122463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4629325.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 20145122463 its reverse (36422154102), we get a palindrome (56567276565).

The spelling of 20145122463 in words is "twenty billion, one hundred forty-five million, one hundred twenty-two thousand, four hundred sixty-three".