3507066581 has 2 divisors, whose sum is σ = 3507066582. Its totient is φ = 3507066580.

The previous prime is 3507066557. The next prime is 3507066587. The reversal of 3507066581 is 1856607053.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2807940100 + 699126481 = 52990^2 + 26441^2 .

It is a cyclic number.

It is not a de Polignac number, because 3507066581 - 2¹⁸ = 3506804437 is a prime.

It is a super-2 number, since 2×3507066581² = 24599032007134059122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3507066587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1753533290 + 1753533291.

It is an arithmetic number, because the mean of its divisors is an integer number (1753533291).

Almost surely, 2^3507066581 is an apocalyptic number.

It is an amenable number.

3507066581 is a deficient number, since it is larger than the sum of its proper divisors (1).

3507066581 is an equidigital number, since it uses as much as digits as its factorization.

3507066581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 3507066581 is about 59220.4912255885. The cubic root of 3507066581 is about 1519.3156229144.

The spelling of 3507066581 in words is "three billion, five hundred seven million, sixty-six thousand, five hundred eighty-one".