65628542541 has 16 divisors (see below), whose sum is σ = 89892201728. Its totient is φ = 42559214400.

The previous prime is 65628542521. The next prime is 65628542557. The reversal of 65628542541 is 14524582656.

65628542541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65628542541 - 2¹⁴ = 65628526157 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 (65628542521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384411 + ... + 528231.

It is an arithmetic number, because the mean of its divisors is an integer number (5618262608).

Almost surely, 2^65628542541 is an apocalyptic number.

It is an amenable number.

65628542541 is a deficient number, since it is larger than the sum of its proper divisors (24263659187).

65628542541 is a wasteful number, since it uses less digits than its factorization.

65628542541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147972.

The product of its digits is 2304000, while the sum is 48.

The spelling of 65628542541 in words is "sixty-five billion, six hundred twenty-eight million, five hundred forty-two thousand, five hundred forty-one".