16167625261 has 2 divisors, whose sum is σ = 16167625262. Its totient is φ = 16167625260.

The previous prime is 16167625259. The next prime is 16167625283. The reversal of 16167625261 is 16252676161.

16167625261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15772848100 + 394777161 = 125590^2 + 19869^2 .

It is a cyclic number.

It is not a de Polignac number, because 16167625261 - 2¹ = 16167625259 is a prime.

It is a super-2 number, since 2×16167625261² (a number of 21 digits) contains 22 as substring.

Together with 16167625259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16167625211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8083812630 + 8083812631.

It is an arithmetic number, because the mean of its divisors is an integer number (8083812631).

Almost surely, 2^16167625261 is an apocalyptic number.

It is an amenable number.

16167625261 is a deficient number, since it is larger than the sum of its proper divisors (1).

16167625261 is an equidigital number, since it uses as much as digits as its factorization.

16167625261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The spelling of 16167625261 in words is "sixteen billion, one hundred sixty-seven million, six hundred twenty-five thousand, two hundred sixty-one".