61136296880 has 40 divisors (see below), whose sum is σ = 142165668672. Its totient is φ = 24450427904.

The previous prime is 61136296867. The next prime is 61136296883. The reversal of 61136296880 is 8869263116.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (61136296883) 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, 442184 + ... + 563736.

Almost surely, 2^61136296880 is an apocalyptic number.

It is an amenable number.

61136296880 is an abundant number, since it is smaller than the sum of its proper divisors (81029371792).

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

61136296880 is a wasteful number, since it uses less digits than its factorization.

61136296880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127853 (or 127847 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 61136296880 in words is "sixty-one billion, one hundred thirty-six million, two hundred ninety-six thousand, eight hundred eighty".