616550566 has 8 divisors (see below), whose sum is σ = 926914824. Its totient is φ = 307578960.

The previous prime is 616550533. The next prime is 616550567. The reversal of 616550566 is 665055616.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616550567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347055 + ... + 348826.

It is an arithmetic number, because the mean of its divisors is an integer number (115864353).

Almost surely, 2^616550566 is an apocalyptic number.

616550566 is a deficient number, since it is larger than the sum of its proper divisors (310364258).

616550566 is a wasteful number, since it uses less digits than its factorization.

616550566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696326.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 616550566 is about 24830.4362829170. The cubic root of 616550566 is about 851.1175915232.

The spelling of 616550566 in words is "six hundred sixteen million, five hundred fifty thousand, five hundred sixty-six".