20318054548 has 96 divisors (see below), whose sum is σ = 42692106240. Its totient is φ = 8352051840.

The previous prime is 20318054447. The next prime is 20318054573. The reversal of 20318054548 is 84545081302.

It is a self number, because there is not a number n which added to its sum of digits gives 20318054548.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14862561 + ... + 14863927.

It is an arithmetic number, because the mean of its divisors is an integer number (444709440).

Almost surely, 2^20318054548 is an apocalyptic number.

It is an amenable number.

20318054548 is an abundant number, since it is smaller than the sum of its proper divisors (22374051692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20318054548 is a wasteful number, since it uses less digits than its factorization.

20318054548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2197 (or 2195 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The spelling of 20318054548 in words is "twenty billion, three hundred eighteen million, fifty-four thousand, five hundred forty-eight".