61568388386516 has 48 divisors (see below), whose sum is σ = 119302569247680. Its totient is φ = 27565948734720.

The previous prime is 61568388386467. The next prime is 61568388386573.

61568388386516 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40553126 + ... + 42043938.

It is an arithmetic number, because the mean of its divisors is an integer number (2485470192660).

Almost surely, 2^{61568388386516} is an apocalyptic number.

It is an amenable number.

61568388386516 is a deficient number, since it is larger than the sum of its proper divisors (57734180861164).

61568388386516 is a wasteful number, since it uses less digits than its factorization.

61568388386516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504904 (or 1504902 counting only the distinct ones).

The product of its digits is 1194393600, while the sum is 74.

The spelling of 61568388386516 in words is "sixty-one trillion, five hundred sixty-eight billion, three hundred eighty-eight million, three hundred eighty-six thousand, five hundred sixteen".