16027750061 has 4 divisors (see below), whose sum is σ = 16290500124. Its totient is φ = 15765000000.

The previous prime is 16027750043. The next prime is 16027750069. The reversal of 16027750061 is 16005772061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4572329161 + 11455420900 = 67619^2 + 107030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16027750061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16027750069) 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 3 ways as a sum of consecutive naturals, for example, 131374940 + ... + 131375061.

It is an arithmetic number, because the mean of its divisors is an integer number (4072625031).

Almost surely, 2^16027750061 is an apocalyptic number.

It is an amenable number.

16027750061 is a deficient number, since it is larger than the sum of its proper divisors (262750063).

16027750061 is an equidigital number, since it uses as much as digits as its factorization.

16027750061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262750062.

The product of its (nonzero) digits is 17640, while the sum is 35.

The spelling of 16027750061 in words is "sixteen billion, twenty-seven million, seven hundred fifty thousand, sixty-one".