16564050155650 has 24 divisors (see below), whose sum is σ = 31015906010100. Its totient is φ = 6581152810560.

The previous prime is 16564050155617. The next prime is 16564050155651. The reversal of 16564050155650 is 5655105046561.

It can be written as a sum of positive squares in 6 ways, for example, as 7214343518209 + 9349706637441 = 2685953^2 + 3057729^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16564050155594 and 16564050155603.

It is not an unprimeable number, because it can be changed into a prime (16564050155651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1111673769 + ... + 1111688668.

Almost surely, 2^{16564050155650} is an apocalyptic number.

16564050155650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16564050155650 is a deficient number, since it is larger than the sum of its proper divisors (14451855854450).

16564050155650 is a wasteful number, since it uses less digits than its factorization.

16564050155650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223362598 (or 2223362593 counting only the distinct ones).

The product of its (nonzero) digits is 2700000, while the sum is 49.

The spelling of 16564050155650 in words is "sixteen trillion, five hundred sixty-four billion, fifty million, one hundred fifty-five thousand, six hundred fifty".