65660151606123 has 4 divisors (see below), whose sum is σ = 87546868808168. Its totient is φ = 43773434404080.

The previous prime is 65660151606103. The next prime is 65660151606149. The reversal of 65660151606123 is 32160615106656.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 65660151606123 - 2²¹ = 65660149508971 is a prime.

It is a super-2 number, since 2×65660151606123² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65660151606103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10943358601018 + ... + 10943358601023.

It is an arithmetic number, because the mean of its divisors is an integer number (21886717202042).

Almost surely, 2^{65660151606123} is an apocalyptic number.

65660151606123 is a deficient number, since it is larger than the sum of its proper divisors (21886717202045).

65660151606123 is a wasteful number, since it uses less digits than its factorization.

65660151606123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21886717202044.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 65660151606123 in words is "sixty-five trillion, six hundred sixty billion, one hundred fifty-one million, six hundred six thousand, one hundred twenty-three".