33223467172661 has 2 divisors, whose sum is σ = 33223467172662. Its totient is φ = 33223467172660.

The previous prime is 33223467172639. The next prime is 33223467172667. The reversal of 33223467172661 is 16627176432233.

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., 33056865240100 + 166601932561 = 5749510^2 + 408169^2 .

It is a cyclic number.

It is not a de Polignac number, because 33223467172661 - 2³⁴ = 33206287303477 is a prime.

It is a super-2 number, since 2×33223467172661² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33223467172667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16611733586330 + 16611733586331.

It is an arithmetic number, because the mean of its divisors is an integer number (16611733586331).

Almost surely, 2^{33223467172661} is an apocalyptic number.

It is an amenable number.

33223467172661 is a deficient number, since it is larger than the sum of its proper divisors (1).

33223467172661 is an equidigital number, since it uses as much as digits as its factorization.

33223467172661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9144576, while the sum is 53.

The spelling of 33223467172661 in words is "thirty-three trillion, two hundred twenty-three billion, four hundred sixty-seven million, one hundred seventy-two thousand, six hundred sixty-one".