61339830566 has 32 divisors (see below), whose sum is σ = 107556526080. Its totient is φ = 25689587616.

The previous prime is 61339830557. The next prime is 61339830619. The reversal of 61339830566 is 66503893316.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358295 + ... + 501053.

It is an arithmetic number, because the mean of its divisors is an integer number (3361141440).

Almost surely, 2^61339830566 is an apocalyptic number.

61339830566 is a deficient number, since it is larger than the sum of its proper divisors (46216695514).

61339830566 is a wasteful number, since it uses less digits than its factorization.

61339830566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143468.

The product of its (nonzero) digits is 2099520, while the sum is 50.

The spelling of 61339830566 in words is "sixty-one billion, three hundred thirty-nine million, eight hundred thirty thousand, five hundred sixty-six".