5016055556661 has 4 divisors (see below), whose sum is σ = 6688074075552. Its totient is φ = 3344037037772.

The previous prime is 5016055556609. The next prime is 5016055556671. The reversal of 5016055556661 is 1666555506105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5016055556661 - 2¹⁴ = 5016055540277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5016055556671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836009259441 + ... + 836009259446.

It is an arithmetic number, because the mean of its divisors is an integer number (1672018518888).

Almost surely, 2^{5016055556661} is an apocalyptic number.

It is an amenable number.

5016055556661 is a deficient number, since it is larger than the sum of its proper divisors (1672018518891).

5016055556661 is a wasteful number, since it uses less digits than its factorization.

5016055556661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672018518890.

The product of its (nonzero) digits is 4050000, while the sum is 51.

The spelling of 5016055556661 in words is "five trillion, sixteen billion, fifty-five million, five hundred fifty-six thousand, six hundred sixty-one".