20145422463 has 8 divisors (see below), whose sum is σ = 26874144000. Its totient is φ = 13423491288.

The previous prime is 20145422441. The next prime is 20145422503. The reversal of 20145422463 is 36422454102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20145422463 - 2⁸ = 20145422207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20145424463) 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, 1690663 + ... + 1702536.

It is an arithmetic number, because the mean of its divisors is an integer number (3359268000).

Almost surely, 2^20145422463 is an apocalyptic number.

20145422463 is a deficient number, since it is larger than the sum of its proper divisors (6728721537).

20145422463 is a wasteful number, since it uses less digits than its factorization.

20145422463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395181.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 20145422463 its reverse (36422454102), we get a palindrome (56567876565).

The spelling of 20145422463 in words is "twenty billion, one hundred forty-five million, four hundred twenty-two thousand, four hundred sixty-three".