51206656126366 has 16 divisors (see below), whose sum is σ = 82789083710928. Its totient is φ = 23613658660800.

The previous prime is 51206656126331. The next prime is 51206656126447. The reversal of 51206656126366 is 66362165660215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840911815 + ... + 840972706.

It is an arithmetic number, because the mean of its divisors is an integer number (5174317731933).

Almost surely, 2^{51206656126366} is an apocalyptic number.

51206656126366 is a deficient number, since it is larger than the sum of its proper divisors (31582427584562).

51206656126366 is a wasteful number, since it uses less digits than its factorization.

51206656126366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681885707.

The product of its (nonzero) digits is 13996800, while the sum is 55.

The spelling of 51206656126366 in words is "fifty-one trillion, two hundred six billion, six hundred fifty-six million, one hundred twenty-six thousand, three hundred sixty-six".