3223661515073 has 2 divisors, whose sum is σ = 3223661515074. Its totient is φ = 3223661515072.

The previous prime is 3223661515033. The next prime is 3223661515093. The reversal of 3223661515073 is 3705151663223.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2476116250624 + 747545264449 = 1573568^2 + 864607^2 .

It is a cyclic number.

It is not a de Polignac number, because 3223661515073 - 2⁸ = 3223661514817 is a prime.

It is not a weakly prime, because it can be changed into another prime (3223661515003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1611830757536 + 1611830757537.

It is an arithmetic number, because the mean of its divisors is an integer number (1611830757537).

Almost surely, 2^{3223661515073} is an apocalyptic number.

It is an amenable number.

3223661515073 is a deficient number, since it is larger than the sum of its proper divisors (1).

3223661515073 is an equidigital number, since it uses as much as digits as its factorization.

3223661515073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 44.

The spelling of 3223661515073 in words is "three trillion, two hundred twenty-three billion, six hundred sixty-one million, five hundred fifteen thousand, seventy-three".