5051566665651 has 16 divisors (see below), whose sum is σ = 7348040271360. Its totient is φ = 3061427663520.

The previous prime is 5051566665643. The next prime is 5051566665707. The reversal of 5051566665651 is 1565666651505.

It is not a de Polignac number, because 5051566665651 - 2³ = 5051566665643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5051566665591 and 5051566665600.

It is not an unprimeable number, because it can be changed into a prime (5051566665631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2392315 + ... + 3978228.

It is an arithmetic number, because the mean of its divisors is an integer number (459252516960).

Almost surely, 2^{5051566665651} is an apocalyptic number.

5051566665651 is a deficient number, since it is larger than the sum of its proper divisors (2296473605709).

5051566665651 is a wasteful number, since it uses less digits than its factorization.

5051566665651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6394586.

The product of its (nonzero) digits is 24300000, while the sum is 57.

The spelling of 5051566665651 in words is "five trillion, fifty-one billion, five hundred sixty-six million, six hundred sixty-five thousand, six hundred fifty-one".