65656551156007 has 32 divisors (see below), whose sum is σ = 77792918667264. Its totient is φ = 54225451728000.

The previous prime is 65656551155989. The next prime is 65656551156023. The reversal of 65656551156007 is 70065115565656.

It is a happy number.

It is not a de Polignac number, because 65656551156007 - 2⁷ = 65656551155879 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 (65656551156067) 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, 82131882 + ... + 82927432.

It is an arithmetic number, because the mean of its divisors is an integer number (2431028708352).

Almost surely, 2^{65656551156007} is an apocalyptic number.

65656551156007 is a deficient number, since it is larger than the sum of its proper divisors (12136367511257).

65656551156007 is a wasteful number, since it uses less digits than its factorization.

65656551156007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797239.

The product of its (nonzero) digits is 28350000, while the sum is 58.

The spelling of 65656551156007 in words is "sixty-five trillion, six hundred fifty-six billion, five hundred fifty-one million, one hundred fifty-six thousand, seven".