498903508656 has 400 divisors, whose sum is σ = 1716754079040. Its totient is φ = 136855111680.

The previous prime is 498903508637. The next prime is 498903508667. The reversal of 498903508656 is 656805309894.

498903508656 is a `hidden beast` number, since 49 + 89 + 0 + 3 + 508 + 6 + 5 + 6 = 666.

498903508656 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 498903508593 and 498903508602.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 47613690 + ... + 47624166.

Almost surely, 2^498903508656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 498903508656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (858377039520).

498903508656 is an abundant number, since it is smaller than the sum of its proper divisors (1217850570384).

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

498903508656 is a wasteful number, since it uses less digits than its factorization.

498903508656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10714 (or 10699 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 63.

The spelling of 498903508656 in words is "four hundred ninety-eight billion, nine hundred three million, five hundred eight thousand, six hundred fifty-six".