616661232216 has 32 divisors (see below), whose sum is σ = 1546020390960. Its totient is φ = 204971436032.

The previous prime is 616661232167. The next prime is 616661232221. The reversal of 616661232216 is 612232166616.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36385605 + ... + 36402548.

Almost surely, 2^616661232216 is an apocalyptic number.

It is an amenable number.

616661232216 is an abundant number, since it is smaller than the sum of its proper divisors (929359158744).

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

616661232216 is a wasteful number, since it uses less digits than its factorization.

616661232216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72788515 (or 72788511 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The spelling of 616661232216 in words is "six hundred sixteen billion, six hundred sixty-one million, two hundred thirty-two thousand, two hundred sixteen".