61336616516 has 36 divisors (see below), whose sum is σ = 125423843328. Its totient is φ = 26169223248.

The previous prime is 61336616507. The next prime is 61336616527. The reversal of 61336616516 is 61561663316.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 657956 + ... + 745371.

It is an arithmetic number, because the mean of its divisors is an integer number (3483995648).

Almost surely, 2^61336616516 is an apocalyptic number.

It is an amenable number.

61336616516 is an abundant number, since it is smaller than the sum of its proper divisors (64087226812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61336616516 is a wasteful number, since it uses less digits than its factorization.

61336616516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403568 (or 1403559 counting only the distinct ones).

The product of its digits is 349920, while the sum is 44.

The spelling of 61336616516 in words is "sixty-one billion, three hundred thirty-six million, six hundred sixteen thousand, five hundred sixteen".