616551725220 has 24 divisors (see below), whose sum is σ = 1726344830784. Its totient is φ = 164413793376.

The previous prime is 616551725183. The next prime is 616551725239. The reversal of 616551725220 is 22527155616.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5137930984 + ... + 5137931103.

It is an arithmetic number, because the mean of its divisors is an integer number (71931034616).

Almost surely, 2^616551725220 is an apocalyptic number.

616551725220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

616551725220 is an abundant number, since it is smaller than the sum of its proper divisors (1109793105564).

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

616551725220 is a wasteful number, since it uses less digits than its factorization.

616551725220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10275862099 (or 10275862097 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 42.

The spelling of 616551725220 in words is "six hundred sixteen billion, five hundred fifty-one million, seven hundred twenty-five thousand, two hundred twenty".