5620666165 has 16 divisors (see below), whose sum is σ = 7233753600. Its totient is φ = 4179494592.

The previous prime is 5620666159. The next prime is 5620666169. The reversal of 5620666165 is 5616660265.

It is a cyclic number.

It is not a de Polignac number, because 5620666165 - 2¹⁵ = 5620633397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5620666169) 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, 553125 + ... + 563194.

It is an arithmetic number, because the mean of its divisors is an integer number (452109600).

Almost surely, 2^5620666165 is an apocalyptic number.

It is an amenable number.

5620666165 is a deficient number, since it is larger than the sum of its proper divisors (1613087435).

5620666165 is a wasteful number, since it uses less digits than its factorization.

5620666165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116396.

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 5620666165 is about 74971.1021994475. The cubic root of 5620666165 is about 1777.9897944890.

The spelling of 5620666165 in words is "five billion, six hundred twenty million, six hundred sixty-six thousand, one hundred sixty-five".