1616565006 has 32 divisors (see below), whose sum is σ = 4105562880. Its totient is φ = 461875608.

The previous prime is 1616564987. The next prime is 1616565017. The reversal of 1616565006 is 6005656161.

It is a super-2 number, since 2×1616565006² = 5226564837247560072, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2137936 + ... + 2138691.

It is an arithmetic number, because the mean of its divisors is an integer number (128298840).

Almost surely, 2^1616565006 is an apocalyptic number.

1616565006 is an abundant number, since it is smaller than the sum of its proper divisors (2488997874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1616565006 is a wasteful number, since it uses less digits than its factorization.

1616565006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4276645 (or 4276639 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 1616565006 is about 40206.5293951119. The cubic root of 1616565006 is about 1173.6296094712.

The spelling of 1616565006 in words is "one billion, six hundred sixteen million, five hundred sixty-five thousand, six".