5185556680 has 16 divisors (see below), whose sum is σ = 11667502620. Its totient is φ = 2074222656.

The previous prime is 5185556641. The next prime is 5185556693. The reversal of 5185556680 is 866555815.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5024824996 + 160731684 = 70886^2 + 12678^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64819419 + ... + 64819498.

Almost surely, 2^5185556680 is an apocalyptic number.

It is an amenable number.

5185556680 is an abundant number, since it is smaller than the sum of its proper divisors (6481945940).

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

5185556680 is a wasteful number, since it uses less digits than its factorization.

5185556680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129638928 (or 129638924 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 49.

The square root of 5185556680 is about 72010.8094663572. The cubic root of 5185556680 is about 1730.8727016816.

The spelling of 5185556680 in words is "five billion, one hundred eighty-five million, five hundred fifty-six thousand, six hundred eighty".