20404325514508 has 18 divisors (see below), whose sum is σ = 38665593173004. Its totient is φ = 9417381006384.

The previous prime is 20404325514499. The next prime is 20404325514523. The reversal of 20404325514508 is 80541552340402.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15091956066 + ... + 15091957417.

Almost surely, 2^{20404325514508} is an apocalyptic number.

It is an amenable number.

20404325514508 is a deficient number, since it is larger than the sum of its proper divisors (18261267658496).

20404325514508 is a wasteful number, since it uses less digits than its factorization.

20404325514508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30183913513 (or 30183913498 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 43.

The spelling of 20404325514508 in words is "twenty trillion, four hundred four billion, three hundred twenty-five million, five hundred fourteen thousand, five hundred eight".