20634075548 has 12 divisors (see below), whose sum is σ = 36877922592. Its totient is φ = 10097526240.

The previous prime is 20634075547. The next prime is 20634075569. The reversal of 20634075548 is 84557043602.

It is a junction number, because it is equal to n+sod(n) for n = 20634075499 and 20634075508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20634075541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54877673 + ... + 54878048.

It is an arithmetic number, because the mean of its divisors is an integer number (3073160216).

Almost surely, 2^20634075548 is an apocalyptic number.

It is an amenable number.

20634075548 is a deficient number, since it is larger than the sum of its proper divisors (16243847044).

20634075548 is a wasteful number, since it uses less digits than its factorization.

20634075548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109755772 (or 109755770 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 20634075548 in words is "twenty billion, six hundred thirty-four million, seventy-five thousand, five hundred forty-eight".