16122061651061 has 2 divisors, whose sum is σ = 16122061651062. Its totient is φ = 16122061651060.

The previous prime is 16122061651051. The next prime is 16122061651123. The reversal of 16122061651061 is 16015616022161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13300652764036 + 2821408887025 = 3647006^2 + 1679705^2 .

It is a cyclic number.

It is not a de Polignac number, because 16122061651061 - 2¹⁴ = 16122061634677 is a prime.

It is a super-2 number, since 2×16122061651061² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16122061651051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8061030825530 + 8061030825531.

It is an arithmetic number, because the mean of its divisors is an integer number (8061030825531).

Almost surely, 2^{16122061651061} is an apocalyptic number.

It is an amenable number.

16122061651061 is a deficient number, since it is larger than the sum of its proper divisors (1).

16122061651061 is an equidigital number, since it uses as much as digits as its factorization.

16122061651061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 16122061651061 in words is "sixteen trillion, one hundred twenty-two billion, sixty-one million, six hundred fifty-one thousand, sixty-one".