65543691153 has 4 divisors (see below), whose sum is σ = 87391588208. Its totient is φ = 43695794100.

The previous prime is 65543691151. The next prime is 65543691173. The reversal of 65543691153 is 35119634556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 65543691153 - 2¹ = 65543691151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65543691151) 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, 10923948523 + ... + 10923948528.

It is an arithmetic number, because the mean of its divisors is an integer number (21847897052).

Almost surely, 2^65543691153 is an apocalyptic number.

It is an amenable number.

65543691153 is a deficient number, since it is larger than the sum of its proper divisors (21847897055).

65543691153 is a wasteful number, since it uses less digits than its factorization.

65543691153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21847897054.

The product of its digits is 1458000, while the sum is 48.

The spelling of 65543691153 in words is "sixty-five billion, five hundred forty-three million, six hundred ninety-one thousand, one hundred fifty-three".