616555011 has 8 divisors (see below), whose sum is σ = 822329344. Its totient is φ = 410908680.

The previous prime is 616555003. The next prime is 616555033. The reversal of 616555011 is 110555616.

616555011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 616555011 - 2³ = 616555003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 616555011.

It is not an unprimeable number, because it can be changed into a prime (616555811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20131 + ... + 40476.

It is an arithmetic number, because the mean of its divisors is an integer number (102791168).

Almost surely, 2^616555011 is an apocalyptic number.

616555011 is a deficient number, since it is larger than the sum of its proper divisors (205774333).

616555011 is a wasteful number, since it uses less digits than its factorization.

616555011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64001.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 616555011 is about 24830.5257898418. The cubic root of 616555011 is about 851.1196368859.

It can be divided in two parts, 61655 and 5011, that added together give a palindrome (66666).

The spelling of 616555011 in words is "six hundred sixteen million, five hundred fifty-five thousand, eleven".