65566050000016 has 20 divisors (see below), whose sum is σ = 127035489000124. Its totient is φ = 32782698000000.

The previous prime is 65566049999987. The next prime is 65566050000019. The reversal of 65566050000016 is 61000005066556.

It can be written as a sum of positive squares in 2 ways, for example, as 29309273750416 + 36256776249600 = 5413804^2 + 6021360^2 .

It is a super-2 number, since 2×65566050000016² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65566050000019) 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, 18779235 + ... + 21995266.

Almost surely, 2^{65566050000016} is an apocalyptic number.

It is an amenable number.

65566050000016 is a deficient number, since it is larger than the sum of its proper divisors (61469439000108).

65566050000016 is a wasteful number, since it uses less digits than its factorization.

65566050000016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40875010 (or 40875004 counting only the distinct ones).

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

The spelling of 65566050000016 in words is "sixty-five trillion, five hundred sixty-six billion, fifty million, sixteen", and thus it is an aban number.