61330356616 has 16 divisors (see below), whose sum is σ = 115000183440. Its totient is φ = 30663641040.

The previous prime is 61330356601. The next prime is 61330356617. The reversal of 61330356616 is 61665303316.

61330356616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61330356616² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61330356617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12750 + ... + 350461.

It is an arithmetic number, because the mean of its divisors is an integer number (7187511465).

Almost surely, 2^61330356616 is an apocalyptic number.

It is an amenable number.

61330356616 is a deficient number, since it is larger than the sum of its proper divisors (53669826824).

61330356616 is a wasteful number, since it uses less digits than its factorization.

61330356616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384324 (or 384320 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 40.

The spelling of 61330356616 in words is "sixty-one billion, three hundred thirty million, three hundred fifty-six thousand, six hundred sixteen".