51161700563564 has 6 divisors (see below), whose sum is σ = 89532975986244. Its totient is φ = 25580850281780.

The previous prime is 51161700563503. The next prime is 51161700563609. The reversal of 51161700563564 is 46536500716115.

51161700563564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6395212570442 + ... + 6395212570449.

It is an arithmetic number, because the mean of its divisors is an integer number (14922162664374).

Almost surely, 2^{51161700563564} is an apocalyptic number.

It is an amenable number.

51161700563564 is a deficient number, since it is larger than the sum of its proper divisors (38371275422680).

51161700563564 is a wasteful number, since it uses less digits than its factorization.

51161700563564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12790425140895 (or 12790425140893 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 50.

The spelling of 51161700563564 in words is "fifty-one trillion, one hundred sixty-one billion, seven hundred million, five hundred sixty-three thousand, five hundred sixty-four".