16510566061 has 16 divisors (see below), whose sum is σ = 18116058240. Its totient is φ = 14922733120.

The previous prime is 16510566049. The next prime is 16510566101. The reversal of 16510566061 is 16066501561.

It is a cyclic number.

It is not a de Polignac number, because 16510566061 - 2⁷ = 16510565933 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16510566061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16510566011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1482831 + ... + 1493923.

It is an arithmetic number, because the mean of its divisors is an integer number (1132253640).

Almost surely, 2^16510566061 is an apocalyptic number.

16510566061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16510566061 is a deficient number, since it is larger than the sum of its proper divisors (1605492179).

16510566061 is a wasteful number, since it uses less digits than its factorization.

16510566061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11876.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 16510566061 in words is "sixteen billion, five hundred ten million, five hundred sixty-six thousand, sixty-one".