1167166061 has 2 divisors, whose sum is σ = 1167166062. Its totient is φ = 1167166060.

The previous prime is 1167166043. The next prime is 1167166109. The reversal of 1167166061 is 1606617611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 852990436 + 314175625 = 29206^2 + 17725^2 .

It is a cyclic number.

It is not a de Polignac number, because 1167166061 - 2¹⁴ = 1167149677 is a prime.

It is a super-2 number, since 2×1167166061² = 2724553227900511442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1167166031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583583030 + 583583031.

It is an arithmetic number, because the mean of its divisors is an integer number (583583031).

Almost surely, 2^1167166061 is an apocalyptic number.

It is an amenable number.

1167166061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1167166061 is an equidigital number, since it uses as much as digits as its factorization.

1167166061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 1167166061 is about 34163.8121555543. The cubic root of 1167166061 is about 1052.8767855247.

The spelling of 1167166061 in words is "one billion, one hundred sixty-seven million, one hundred sixty-six thousand, sixty-one".