61336241440 has 48 divisors (see below), whose sum is σ = 145013856120. Its totient is φ = 24516382720.

The previous prime is 61336241377. The next prime is 61336241443. The reversal of 61336241440 is 4414263316.

It can be written as a sum of positive squares in 4 ways, for example, as 21382627984 + 39953613456 = 146228^2 + 199884^2 .

It is a super-3 number, since 3×61336241440³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61336241396 and 61336241405.

It is not an unprimeable number, because it can be changed into a prime (61336241443) 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, 76926 + ... + 358594.

Almost surely, 2^61336241440 is an apocalyptic number.

It is an amenable number.

61336241440 is an abundant number, since it is smaller than the sum of its proper divisors (83677614680).

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

61336241440 is a wasteful number, since it uses less digits than its factorization.

61336241440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283045 (or 283037 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 61336241440 in words is "sixty-one billion, three hundred thirty-six million, two hundred forty-one thousand, four hundred forty".