61066414331513 has 16 divisors (see below), whose sum is σ = 64780992782352. Its totient is φ = 57494651136000.

The previous prime is 61066414331473. The next prime is 61066414331557. The reversal of 61066414331513 is 31513341466016.

It can be written as a sum of positive squares in 8 ways, for example, as 15172333748224 + 45894080583289 = 3895168^2 + 6774517^2 .

It is a cyclic number.

It is not a de Polignac number, because 61066414331513 - 2²⁴ = 61066397554297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61066414301513) 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, 230214608 + ... + 230479713.

It is an arithmetic number, because the mean of its divisors is an integer number (4048812048897).

Almost surely, 2^{61066414331513} is an apocalyptic number.

It is an amenable number.

61066414331513 is a deficient number, since it is larger than the sum of its proper divisors (3714578450839).

61066414331513 is a wasteful number, since it uses less digits than its factorization.

61066414331513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460694476.

The product of its (nonzero) digits is 466560, while the sum is 44.

Adding to 61066414331513 its reverse (31513341466016), we get a palindrome (92579755797529).

The spelling of 61066414331513 in words is "sixty-one trillion, sixty-six billion, four hundred fourteen million, three hundred thirty-one thousand, five hundred thirteen".