556678985500 has 96 divisors (see below), whose sum is σ = 1334452025088. Its totient is φ = 201186504000.

The previous prime is 556678985497. The next prime is 556678985503. The reversal of 556678985500 is 5589876655.

It is an interprime number because it is at equal distance from previous prime (556678985497) and next prime (556678985503).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556678985503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 586027 + ... + 1206973.

It is an arithmetic number, because the mean of its divisors is an integer number (13900541928).

Almost surely, 2^556678985500 is an apocalyptic number.

556678985500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556678985500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (667226012544).

556678985500 is an abundant number, since it is smaller than the sum of its proper divisors (777773039588).

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

556678985500 is a wasteful number, since it uses less digits than its factorization.

556678985500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621140 (or 621128 counting only the distinct ones).

The product of its (nonzero) digits is 90720000, while the sum is 64.

The spelling of 556678985500 in words is "five hundred fifty-six billion, six hundred seventy-eight million, nine hundred eighty-five thousand, five hundred".