616565672 has 32 divisors (see below), whose sum is σ = 1169704800. Its totient is φ = 304659264.

The previous prime is 616565647. The next prime is 616565681. The reversal of 616565672 is 276565616.

It is a super-3 number, since 3×616565672³ (a number of 27 digits) contains 333 as substring.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563558 + ... + 564650.

It is an arithmetic number, because the mean of its divisors is an integer number (36553275).

Almost surely, 2^616565672 is an apocalyptic number.

It is an amenable number.

616565672 is a deficient number, since it is larger than the sum of its proper divisors (553139128).

616565672 is a wasteful number, since it uses less digits than its factorization.

616565672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865 (or 1861 counting only the distinct ones).

The product of its digits is 453600, while the sum is 44.

The square root of 616565672 is about 24830.7404641908. The cubic root of 616565672 is about 851.1245424953.

The spelling of 616565672 in words is "six hundred sixteen million, five hundred sixty-five thousand, six hundred seventy-two".