61244129516 has 24 divisors (see below), whose sum is σ = 107634517200. Its totient is φ = 30491480000.

The previous prime is 61244129477. The next prime is 61244129519. The reversal of 61244129516 is 61592144216.

It is not an unprimeable number, because it can be changed into a prime (61244129519) 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, 5035010 + ... + 5047158.

It is an arithmetic number, because the mean of its divisors is an integer number (4484771550).

Almost surely, 2^61244129516 is an apocalyptic number.

It is an amenable number.

61244129516 is a deficient number, since it is larger than the sum of its proper divisors (46390387684).

61244129516 is a wasteful number, since it uses less digits than its factorization.

61244129516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17425 (or 17423 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The spelling of 61244129516 in words is "sixty-one billion, two hundred forty-four million, one hundred twenty-nine thousand, five hundred sixteen".