5161055651121 has 8 divisors (see below), whose sum is σ = 6964316059680. Its totient is φ = 3399249504992.

The previous prime is 5161055651117. The next prime is 5161055651123. The reversal of 5161055651121 is 1211565501615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5161055651121 - 2² = 5161055651117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5161055651121.

It is not an unprimeable number, because it can be changed into a prime (5161055651123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10363565316 + ... + 10363565813.

It is an arithmetic number, because the mean of its divisors is an integer number (870539507460).

Almost surely, 2^{5161055651121} is an apocalyptic number.

It is an amenable number.

5161055651121 is a deficient number, since it is larger than the sum of its proper divisors (1803260408559).

5161055651121 is a wasteful number, since it uses less digits than its factorization.

5161055651121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20727131215.

The product of its (nonzero) digits is 45000, while the sum is 39.

The spelling of 5161055651121 in words is "five trillion, one hundred sixty-one billion, fifty-five million, six hundred fifty-one thousand, one hundred twenty-one".