61616632316 has 12 divisors (see below), whose sum is σ = 108783347232. Its totient is φ = 30535675968.

The previous prime is 61616632313. The next prime is 61616632327. The reversal of 61616632316 is 61323661616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61616632313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68159540 + ... + 68160443.

It is an arithmetic number, because the mean of its divisors is an integer number (9065278936).

Almost surely, 2^61616632316 is an apocalyptic number.

It is an amenable number.

61616632316 is a deficient number, since it is larger than the sum of its proper divisors (47166714916).

61616632316 is a wasteful number, since it uses less digits than its factorization.

61616632316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136320100 (or 136320098 counting only the distinct ones).

The product of its digits is 139968, while the sum is 41.

The spelling of 61616632316 in words is "sixty-one billion, six hundred sixteen million, six hundred thirty-two thousand, three hundred sixteen".