5161377213856 has 12 divisors (see below), whose sum is σ = 10161461389842. Its totient is φ = 2580688606912.

The previous prime is 5161377213799. The next prime is 5161377213911. The reversal of 5161377213856 is 6583127731615.

It can be written as a sum of positive squares in only one way, i.e., 5138763069456 + 22614144400 = 2266884^2 + 150380^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5161377213797 and 5161377213806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80646518935 + ... + 80646518998.

Almost surely, 2^{5161377213856} is an apocalyptic number.

It is an amenable number.

5161377213856 is a deficient number, since it is larger than the sum of its proper divisors (5000084175986).

5161377213856 is a wasteful number, since it uses less digits than its factorization.

5161377213856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161293037943 (or 161293037935 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 55.

The spelling of 5161377213856 in words is "five trillion, one hundred sixty-one billion, three hundred seventy-seven million, two hundred thirteen thousand, eight hundred fifty-six".