261164452067 has 2 divisors, whose sum is σ = 261164452068. Its totient is φ = 261164452066.

The previous prime is 261164452057. The next prime is 261164452181. The reversal of 261164452067 is 760254461162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 261164452067 - 2³² = 256869484771 is a prime.

It is a super-3 number, since 3×261164452067³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (261164452057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130582226033 + 130582226034.

It is an arithmetic number, because the mean of its divisors is an integer number (130582226034).

Almost surely, 2^261164452067 is an apocalyptic number.

261164452067 is a deficient number, since it is larger than the sum of its proper divisors (1).

261164452067 is an equidigital number, since it uses as much as digits as its factorization.

261164452067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 261164452067 in words is "two hundred sixty-one billion, one hundred sixty-four million, four hundred fifty-two thousand, sixty-seven".