68303506554 has 32 divisors (see below), whose sum is σ = 151808192640. Its totient is φ = 22764442176.

The previous prime is 68303506363. The next prime is 68303506573. The reversal of 68303506554 is 45560530386.

68303506554 is a `hidden beast` number, since 68 + 3 + 0 + 35 + 0 + 6 + 554 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285442 + ... + 466994.

It is an arithmetic number, because the mean of its divisors is an integer number (4744006020).

Almost surely, 2^68303506554 is an apocalyptic number.

68303506554 is an abundant number, since it is smaller than the sum of its proper divisors (83504686086).

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

68303506554 is a wasteful number, since it uses less digits than its factorization.

68303506554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188531 (or 188525 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 68303506554 in words is "sixty-eight billion, three hundred three million, five hundred six thousand, five hundred fifty-four".