61136565347 has 16 divisors (see below), whose sum is σ = 71835089760. Its totient is φ = 51296044800.

The previous prime is 61136565271. The next prime is 61136565349. The reversal of 61136565347 is 74356563116.

61136565347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61136565347 - 2¹² = 61136561251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61136565349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1118597 + ... + 1171977.

It is an arithmetic number, because the mean of its divisors is an integer number (4489693110).

Almost surely, 2^61136565347 is an apocalyptic number.

61136565347 is a deficient number, since it is larger than the sum of its proper divisors (10698524413).

61136565347 is a wasteful number, since it uses less digits than its factorization.

61136565347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61414.

The product of its digits is 1360800, while the sum is 47.

The spelling of 61136565347 in words is "sixty-one billion, one hundred thirty-six million, five hundred sixty-five thousand, three hundred forty-seven".