616973566 has 8 divisors (see below), whose sum is σ = 1009593144. Its totient is φ = 280442520.

The previous prime is 616973531. The next prime is 616973569. The reversal of 616973566 is 665379616.

616973566 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 a super-2 number, since 2×616973566² = 761312762285512712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616973569) 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, 14022105 + ... + 14022148.

It is an arithmetic number, because the mean of its divisors is an integer number (126199143).

Almost surely, 2^616973566 is an apocalyptic number.

616973566 is a deficient number, since it is larger than the sum of its proper divisors (392619578).

616973566 is a wasteful number, since it uses less digits than its factorization.

616973566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28044266.

The product of its digits is 1224720, while the sum is 49.

The square root of 616973566 is about 24838.9525946647. The cubic root of 616973566 is about 851.3121905597.

The spelling of 616973566 in words is "six hundred sixteen million, nine hundred seventy-three thousand, five hundred sixty-six".