7136138556 has 30 divisors (see below), whose sum is σ = 18655276640. Its totient is φ = 2378712744.

The previous prime is 7136138543. The next prime is 7136138587. The reversal of 7136138556 is 6558316317.

7136138556 is a `hidden beast` number, since 7 + 1 + 3 + 61 + 38 + 556 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 11012236 + ... + 11012883.

Almost surely, 2^7136138556 is an apocalyptic number.

It is an amenable number.

7136138556 is an abundant number, since it is smaller than the sum of its proper divisors (11519138084).

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

7136138556 is a wasteful number, since it uses less digits than its factorization.

7136138556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22025135 (or 22025124 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 7136138556 is about 84475.6684258846. The cubic root of 7136138556 is about 1925.2527744524.

The spelling of 7136138556 in words is "seven billion, one hundred thirty-six million, one hundred thirty-eight thousand, five hundred fifty-six".