51601094566 has 16 divisors (see below), whose sum is σ = 88466547456. Its totient is φ = 22112872776.

The previous prime is 51601094561. The next prime is 51601094593. The reversal of 51601094566 is 66549010615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51601094561) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 20455 + ... + 321901.

It is an arithmetic number, because the mean of its divisors is an integer number (5529159216).

Almost surely, 2^51601094566 is an apocalyptic number.

51601094566 is a deficient number, since it is larger than the sum of its proper divisors (36865452890).

51601094566 is a wasteful number, since it uses less digits than its factorization.

51601094566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313683.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 51601094566 in words is "fifty-one billion, six hundred one million, ninety-four thousand, five hundred sixty-six".