61071706655506 has 8 divisors (see below), whose sum is σ = 93841890714684. Its totient is φ = 29791076417280.

The previous prime is 61071706655503. The next prime is 61071706655527. The reversal of 61071706655506 is 60555660717016.

It is a happy number.

61071706655506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 51463535568481 + 9608171087025 = 7173809^2 + 3099705^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (61071706655503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372388455135 + ... + 372388455298.

Almost surely, 2^{61071706655506} is an apocalyptic number.

61071706655506 is a deficient number, since it is larger than the sum of its proper divisors (32770184059178).

61071706655506 is a wasteful number, since it uses less digits than its factorization.

61071706655506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744776910476.

The product of its (nonzero) digits is 7938000, while the sum is 55.

The spelling of 61071706655506 in words is "sixty-one trillion, seventy-one billion, seven hundred six million, six hundred fifty-five thousand, five hundred six".