616549992 has 32 divisors (see below), whose sum is σ = 1558699200. Its totient is φ = 203206784.

The previous prime is 616549991. The next prime is 616550003. The reversal of 616549992 is 299945616.

It is not an unprimeable number, because it can be changed into a prime (616549991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142188 + ... + 146459.

It is an arithmetic number, because the mean of its divisors is an integer number (48709350).

Almost surely, 2^616549992 is an apocalyptic number.

It is an amenable number.

616549992 is an abundant number, since it is smaller than the sum of its proper divisors (942149208).

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

616549992 is a wasteful number, since it uses less digits than its factorization.

616549992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288745 (or 288741 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 51.

The square root of 616549992 is about 24830.4247245189. The cubic root of 616549992 is about 851.1173273969.

The spelling of 616549992 in words is "six hundred sixteen million, five hundred forty-nine thousand, nine hundred ninety-two".