61347716216 has 16 divisors (see below), whose sum is σ = 115036248600. Its totient is φ = 30671383264.

The previous prime is 61347716149. The next prime is 61347716291. The reversal of 61347716216 is 61261774316.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201806 + ... + 404253.

Almost surely, 2^61347716216 is an apocalyptic number.

It is an amenable number.

61347716216 is a deficient number, since it is larger than the sum of its proper divisors (53688532384).

61347716216 is a wasteful number, since it uses less digits than its factorization.

61347716216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618718 (or 618714 counting only the distinct ones).

The product of its digits is 254016, while the sum is 44.

The spelling of 61347716216 in words is "sixty-one billion, three hundred forty-seven million, seven hundred sixteen thousand, two hundred sixteen".