5165865761 has 8 divisors (see below), whose sum is σ = 6094293504. Its totient is φ = 4285049760.

The previous prime is 5165865743. The next prime is 5165865763. The reversal of 5165865761 is 1675685615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5165865761 - 2⁶ = 5165865697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5165865763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11902700 + ... + 11903133.

It is an arithmetic number, because the mean of its divisors is an integer number (761786688).

Almost surely, 2^5165865761 is an apocalyptic number.

It is an amenable number.

5165865761 is a deficient number, since it is larger than the sum of its proper divisors (928427743).

5165865761 is a wasteful number, since it uses less digits than its factorization.

5165865761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23805871.

The product of its digits is 1512000, while the sum is 50.

The square root of 5165865761 is about 71873.9574602651. The cubic root of 5165865761 is about 1728.6790634961.

The spelling of 5165865761 in words is "five billion, one hundred sixty-five million, eight hundred sixty-five thousand, seven hundred sixty-one".