65158857543 has 16 divisors (see below), whose sum is σ = 93686061056. Its totient is φ = 40044348000.

The previous prime is 65158857521. The next prime is 65158857551. The reversal of 65158857543 is 34575885156.

It is not a de Polignac number, because 65158857543 - 2¹² = 65158853447 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 (65158857943) 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 15 ways as a sum of consecutive naturals, for example, 1083055 + ... + 1141632.

It is an arithmetic number, because the mean of its divisors is an integer number (5855378816).

Almost surely, 2^65158857543 is an apocalyptic number.

65158857543 is a deficient number, since it is larger than the sum of its proper divisors (28527203513).

65158857543 is a wasteful number, since it uses less digits than its factorization.

65158857543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225454.

The product of its digits is 20160000, while the sum is 57.

The spelling of 65158857543 in words is "sixty-five billion, one hundred fifty-eight million, eight hundred fifty-seven thousand, five hundred forty-three".