33666249949 has 8 divisors (see below), whose sum is σ = 33763970520. Its totient is φ = 33568670016.

The previous prime is 33666249923. The next prime is 33666249983. The reversal of 33666249949 is 94994266633.

It can be written as a sum of positive squares in 4 ways, for example, as 691321849 + 32974928100 = 26293^2 + 181590^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33666249949 - 2⁷ = 33666249821 is a prime.

It is a super-2 number, since 2×33666249949² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33666246949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454107 + ... + 523015.

It is an arithmetic number, because the mean of its divisors is an integer number (4220496315).

Almost surely, 2^33666249949 is an apocalyptic number.

It is an amenable number.

33666249949 is a deficient number, since it is larger than the sum of its proper divisors (97720571).

33666249949 is an equidigital number, since it uses as much as digits as its factorization.

33666249949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70319.

The product of its digits is 45349632, while the sum is 61.

The spelling of 33666249949 in words is "thirty-three billion, six hundred sixty-six million, two hundred forty-nine thousand, nine hundred forty-nine".