16051255061 has 4 divisors (see below), whose sum is σ = 16052747052. Its totient is φ = 16049763072.

The previous prime is 16051255049. The next prime is 16051255063. The reversal of 16051255061 is 16055215061.

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 11638310161 + 4412944900 = 107881^2 + 66430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16051255061 is a prime.

It is a super-2 number, since 2×16051255061² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16051255063) 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, 729740 + ... + 751413.

It is an arithmetic number, because the mean of its divisors is an integer number (4013186763).

Almost surely, 2^16051255061 is an apocalyptic number.

It is an amenable number.

16051255061 is a deficient number, since it is larger than the sum of its proper divisors (1491991).

16051255061 is a wasteful number, since it uses less digits than its factorization.

16051255061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491990.

The product of its (nonzero) digits is 9000, while the sum is 32.

The spelling of 16051255061 in words is "sixteen billion, fifty-one million, two hundred fifty-five thousand, sixty-one".