5061665565 has 64 divisors (see below), whose sum is σ = 9827308800. Its totient is φ = 2451456000.

The previous prime is 5061665533. The next prime is 5061665603. The reversal of 5061665565 is 5655661605.

It is not a de Polignac number, because 5061665565 - 2⁵ = 5061665533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5061665565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2376421 + ... + 2378549.

It is an arithmetic number, because the mean of its divisors is an integer number (153551700).

Almost surely, 2^5061665565 is an apocalyptic number.

5061665565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5061665565 is a deficient number, since it is larger than the sum of its proper divisors (4765643235).

5061665565 is a wasteful number, since it uses less digits than its factorization.

5061665565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755 (or 3749 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The square root of 5061665565 is about 71145.3833006752. The cubic root of 5061665565 is about 1716.9770189298.

The spelling of 5061665565 in words is "five billion, sixty-one million, six hundred sixty-five thousand, five hundred sixty-five".