65516171007 has 8 divisors (see below), whose sum is σ = 99834165376. Its totient is φ = 37437811992.

The previous prime is 65516170999. The next prime is 65516171009. The reversal of 65516171007 is 70017161556.

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

It is not a de Polignac number, because 65516171007 - 2³ = 65516170999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65516171009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1559908813 + ... + 1559908854.

It is an arithmetic number, because the mean of its divisors is an integer number (12479270672).

Almost surely, 2^65516171007 is an apocalyptic number.

65516171007 is a deficient number, since it is larger than the sum of its proper divisors (34317994369).

65516171007 is a wasteful number, since it uses less digits than its factorization.

65516171007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119817677.

The product of its (nonzero) digits is 44100, while the sum is 39.

The spelling of 65516171007 in words is "sixty-five billion, five hundred sixteen million, one hundred seventy-one thousand, seven".