6135551656 has 32 divisors (see below), whose sum is σ = 12409304040. Its totient is φ = 2827173888.

The previous prime is 6135551627. The next prime is 6135551657. The reversal of 6135551656 is 6561555316.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1518349156 + 4617202500 = 38966^2 + 67950^2 .

It is not an unprimeable number, because it can be changed into a prime (6135551657) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16360 + ... + 111976.

Almost surely, 2^6135551656 is an apocalyptic number.

It is an amenable number.

6135551656 is an abundant number, since it is smaller than the sum of its proper divisors (6273752384).

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

6135551656 is a wasteful number, since it uses less digits than its factorization.

6135551656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96253 (or 96249 counting only the distinct ones).

The product of its digits is 405000, while the sum is 43.

The square root of 6135551656 is about 78329.7622618631. The cubic root of 6135551656 is about 1830.7029117150.

The spelling of 6135551656 in words is "six billion, one hundred thirty-five million, five hundred fifty-one thousand, six hundred fifty-six".