33172243105 has 4 divisors (see below), whose sum is σ = 39806691732. Its totient is φ = 26537794480.

The previous prime is 33172243103. The next prime is 33172243121. The reversal of 33172243105 is 50134227133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50134227133 = 34649 ⋅1446917.

It can be written as a sum of positive squares in 2 ways, for example, as 9827153424 + 23345089681 = 99132^2 + 152791^2 .

It is not a de Polignac number, because 33172243105 - 2¹ = 33172243103 is a prime.

It is a super-2 number, since 2×33172243105² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33172243103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3317224306 + ... + 3317224315.

It is an arithmetic number, because the mean of its divisors is an integer number (9951672933).

Almost surely, 2^33172243105 is an apocalyptic number.

It is an amenable number.

33172243105 is a deficient number, since it is larger than the sum of its proper divisors (6634448627).

33172243105 is an equidigital number, since it uses as much as digits as its factorization.

33172243105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6634448626.

The product of its (nonzero) digits is 15120, while the sum is 31.

It can be divided in two parts, 3317 and 2243105, that added together give a palindrome (2246422).

The spelling of 33172243105 in words is "thirty-three billion, one hundred seventy-two million, two hundred forty-three thousand, one hundred five".