65706761121 has 8 divisors (see below), whose sum is σ = 87610259040. Its totient is φ = 43803885312.

The previous prime is 65706761101. The next prime is 65706761129. The reversal of 65706761121 is 12116760756.

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

It is a de Polignac number, because none of the positive numbers 2^k-65706761121 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (65706761129) 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, 221470 + ... + 424808.

It is an arithmetic number, because the mean of its divisors is an integer number (10951282380).

Almost surely, 2^65706761121 is an apocalyptic number.

It is an amenable number.

65706761121 is a deficient number, since it is larger than the sum of its proper divisors (21903497919).

65706761121 is a wasteful number, since it uses less digits than its factorization.

65706761121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311055.

The product of its (nonzero) digits is 105840, while the sum is 42.

The spelling of 65706761121 in words is "sixty-five billion, seven hundred six million, seven hundred sixty-one thousand, one hundred twenty-one".