61140616600 has 48 divisors (see below), whose sum is σ = 162459356400. Its totient is φ = 20962496640.

The previous prime is 61140616597. The next prime is 61140616609. The reversal of 61140616600 is 661604116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61140616609) 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 11 ways as a sum of consecutive naturals, for example, 21834535 + ... + 21837334.

It is an arithmetic number, because the mean of its divisors is an integer number (3384569925).

Almost surely, 2^61140616600 is an apocalyptic number.

It is an amenable number.

61140616600 is an abundant number, since it is smaller than the sum of its proper divisors (101318739800).

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

61140616600 is a wasteful number, since it uses less digits than its factorization.

61140616600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43671892 (or 43671883 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 61140616600 in words is "sixty-one billion, one hundred forty million, six hundred sixteen thousand, six hundred".