65511051106051 has 32 divisors (see below), whose sum is σ = 67402338831360. Its totient is φ = 63650469752064.

The previous prime is 65511051106043. The next prime is 65511051106063. The reversal of 65511051106051 is 15060115011556.

It is a cyclic number.

It is not a de Polignac number, because 65511051106051 - 2³ = 65511051106043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65511051106051.

It is not an unprimeable number, because it can be changed into a prime (65511051103051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9517801456 + ... + 9517808338.

It is an arithmetic number, because the mean of its divisors is an integer number (2106323088480).

Almost surely, 2^{65511051106051} is an apocalyptic number.

65511051106051 is a deficient number, since it is larger than the sum of its proper divisors (1891287725309).

65511051106051 is a wasteful number, since it uses less digits than its factorization.

65511051106051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10555.

The product of its (nonzero) digits is 22500, while the sum is 37.

The spelling of 65511051106051 in words is "sixty-five trillion, five hundred eleven billion, fifty-one million, one hundred six thousand, fifty-one".