65861162311 has 4 divisors (see below), whose sum is σ = 75269899792. Its totient is φ = 56452424832.

The previous prime is 65861162303. The next prime is 65861162329. The reversal of 65861162311 is 11326116856.

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

It is a cyclic number.

It is not a de Polignac number, because 65861162311 - 2³ = 65861162303 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 (65861162351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4704368730 + ... + 4704368743.

It is an arithmetic number, because the mean of its divisors is an integer number (18817474948).

Almost surely, 2^65861162311 is an apocalyptic number.

65861162311 is a deficient number, since it is larger than the sum of its proper divisors (9408737481).

65861162311 is an equidigital number, since it uses as much as digits as its factorization.

65861162311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9408737480.

The product of its digits is 51840, while the sum is 40.

The spelling of 65861162311 in words is "sixty-five billion, eight hundred sixty-one million, one hundred sixty-two thousand, three hundred eleven".