555555554994 has 64 divisors (see below), whose sum is σ = 1220185608192. Its totient is φ = 167233809600.

The previous prime is 555555554989. The next prime is 555555555019. The reversal of 555555554994 is 499455555555.

It is a Harshad number since it is a multiple of its sum of digits (66).

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, 6005439 + ... + 6097245.

It is an arithmetic number, because the mean of its divisors is an integer number (19065400128).

Almost surely, 2^555555554994 is an apocalyptic number.

555555554994 is an abundant number, since it is smaller than the sum of its proper divisors (664630053198).

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

555555554994 is a wasteful number, since it uses less digits than its factorization.

555555554994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92431.

The product of its digits is 506250000, while the sum is 66.

The spelling of 555555554994 in words is "five hundred fifty-five billion, five hundred fifty-five million, five hundred fifty-four thousand, nine hundred ninety-four".