61766656011705 has 32 divisors (see below), whose sum is σ = 104028530716800. Its totient is φ = 31208272123392.

The previous prime is 61766656011637. The next prime is 61766656011787. The reversal of 61766656011705 is 50711065666716.

It is a happy number.

It is not a de Polignac number, because 61766656011705 - 2⁸ = 61766656011449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90969211 + ... + 91645679.

It is an arithmetic number, because the mean of its divisors is an integer number (3250891584900).

Almost surely, 2^{61766656011705} is an apocalyptic number.

It is an amenable number.

61766656011705 is a deficient number, since it is larger than the sum of its proper divisors (42261874705095).

61766656011705 is a wasteful number, since it uses less digits than its factorization.

61766656011705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996873.

The product of its (nonzero) digits is 9525600, while the sum is 57.

The spelling of 61766656011705 in words is "sixty-one trillion, seven hundred sixty-six billion, six hundred fifty-six million, eleven thousand, seven hundred five".