64004016541 has 2 divisors, whose sum is σ = 64004016542. Its totient is φ = 64004016540.

The previous prime is 64004016473. The next prime is 64004016547. The reversal of 64004016541 is 14561040046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49452419641 + 14551596900 = 222379^2 + 120630^2 .

It is a cyclic number.

It is not a de Polignac number, because 64004016541 - 2⁷ = 64004016413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64004016547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32002008270 + 32002008271.

It is an arithmetic number, because the mean of its divisors is an integer number (32002008271).

Almost surely, 2^64004016541 is an apocalyptic number.

It is an amenable number.

64004016541 is a deficient number, since it is larger than the sum of its proper divisors (1).

64004016541 is an equidigital number, since it uses as much as digits as its factorization.

64004016541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 64004016541 its reverse (14561040046), we get a palindrome (78565056587).

The spelling of 64004016541 in words is "sixty-four billion, four million, sixteen thousand, five hundred forty-one".