616800061 has 8 divisors (see below), whose sum is σ = 629130240. Its totient is φ = 604495632.

The previous prime is 616800049. The next prime is 616800073. The reversal of 616800061 is 160008616.

It is an interprime number because it is at equal distance from previous prime (616800049) and next prime (616800073).

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

It is a cyclic number.

It is not a de Polignac number, because 616800061 - 2⁵ = 616800029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616800661) 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, 46180 + ... + 58018.

It is an arithmetic number, because the mean of its divisors is an integer number (78641280).

Almost surely, 2^616800061 is an apocalyptic number.

It is an amenable number.

616800061 is a deficient number, since it is larger than the sum of its proper divisors (12330179).

616800061 is a wasteful number, since it uses less digits than its factorization.

616800061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12875.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 616800061 is about 24835.4597501234. The cubic root of 616800061 is about 851.2323812141.

Adding to 616800061 its reverse (160008616), we get a palindrome (776808677).

The spelling of 616800061 in words is "six hundred sixteen million, eight hundred thousand, sixty-one".