5665516001655 has 16 divisors (see below), whose sum is σ = 9275635501440. Its totient is φ = 2951338567968.

The previous prime is 5665516001531. The next prime is 5665516001657. The reversal of 5665516001655 is 5561006155665.

It is not a de Polignac number, because 5665516001655 - 2⁷ = 5665516001527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5665516001598 and 5665516001607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5665516001657) 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, 4391872225 + ... + 4391873514.

It is an arithmetic number, because the mean of its divisors is an integer number (579727218840).

Almost surely, 2^{5665516001655} is an apocalyptic number.

5665516001655 is a deficient number, since it is larger than the sum of its proper divisors (3610119499785).

5665516001655 is a wasteful number, since it uses less digits than its factorization.

5665516001655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8783745790.

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

The spelling of 5665516001655 in words is "five trillion, six hundred sixty-five billion, five hundred sixteen million, one thousand, six hundred fifty-five".