61665076016 has 10 divisors (see below), whose sum is σ = 119476084812. Its totient is φ = 30832538000.

The previous prime is 61665075973. The next prime is 61665076051. The reversal of 61665076016 is 61067056616.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1927033610 + ... + 1927033641.

Almost surely, 2^61665076016 is an apocalyptic number.

It is an amenable number.

61665076016 is a deficient number, since it is larger than the sum of its proper divisors (57811008796).

61665076016 is a wasteful number, since it uses less digits than its factorization.

61665076016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3854067259 (or 3854067253 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 61665076016 in words is "sixty-one billion, six hundred sixty-five million, seventy-six thousand, sixteen".