61136443353 has 16 divisors (see below), whose sum is σ = 81891806976. Its totient is φ = 40569431760.

The previous prime is 61136443349. The next prime is 61136443373. The reversal of 61136443353 is 35334463116.

It is a happy number.

It is not a de Polignac number, because 61136443353 - 2² = 61136443349 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61136443373) 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 15 ways as a sum of consecutive naturals, for example, 5608038 + ... + 5618928.

It is an arithmetic number, because the mean of its divisors is an integer number (5118237936).

Almost surely, 2^61136443353 is an apocalyptic number.

It is an amenable number.

61136443353 is a deficient number, since it is larger than the sum of its proper divisors (20755363623).

61136443353 is a wasteful number, since it uses less digits than its factorization.

61136443353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19364.

The product of its digits is 233280, while the sum is 39.

The spelling of 61136443353 in words is "sixty-one billion, one hundred thirty-six million, four hundred forty-three thousand, three hundred fifty-three".