65151516057 has 16 divisors (see below), whose sum is σ = 92792589120.
Its totient is φ = 40517614592.
The previous prime is 65151515981. The next prime is 65151516103. The reversal of 65151516057 is 75061515156.
It is a cyclic number.
It is not a de Polignac number, because 65151516057 - 27 = 65151515929 is a prime.
It is not an unprimeable number, because it can be changed into a prime (65151516557) 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, 5646807 + ... + 5658332.
It is an arithmetic number, because the mean of its divisors is an integer number (5799536820).
Almost surely, 265151516057 is an apocalyptic number.
It is an amenable number.
65151516057 is a deficient number, since it is larger than the sum of its proper divisors (27641073063).
65151516057 is a wasteful number, since it uses less digits than its factorization.
65151516057 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11305272.
The product of its (nonzero) digits is 157500, while the sum is 42.
Subtracting 65151516057 from its reverse (75061515156), we obtain a palindrome (9909999099).
The spelling of 65151516057 in words is "sixty-five billion, one hundred fifty-one million, five hundred sixteen thousand, fifty-seven".