61665100244 has 12 divisors (see below), whose sum is σ = 117724282368. Its totient is φ = 28029591000.

The previous prime is 61665100181. The next prime is 61665100253. The reversal of 61665100244 is 44200156616.

61665100244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700739732 + ... + 700739819.

It is an arithmetic number, because the mean of its divisors is an integer number (9810356864).

Almost surely, 2^61665100244 is an apocalyptic number.

It is an amenable number.

61665100244 is a deficient number, since it is larger than the sum of its proper divisors (56059182124).

61665100244 is a wasteful number, since it uses less digits than its factorization.

61665100244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401479566 (or 1401479564 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 61665100244 in words is "sixty-one billion, six hundred sixty-five million, one hundred thousand, two hundred forty-four".