61546064516 has 12 divisors (see below), whose sum is σ = 107711092188. Its totient is φ = 30771466752.

The previous prime is 61546064483. The next prime is 61546064533.

61546064516 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 38592602500 + 22953462016 = 196450^2 + 151504^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300581 + ... + 461996.

It is an arithmetic number, because the mean of its divisors is an integer number (8975924349).

Almost surely, 2^61546064516 is an apocalyptic number.

It is an amenable number.

61546064516 is a deficient number, since it is larger than the sum of its proper divisors (46165027672).

61546064516 is a wasteful number, since it uses less digits than its factorization.

61546064516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782758 (or 782756 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

It can be divided in two parts, 615460 and 64516, that added together give a palindrome (679976).

The spelling of 61546064516 in words is "sixty-one billion, five hundred forty-six million, sixty-four thousand, five hundred sixteen".