33081311802 has 64 divisors (see below), whose sum is σ = 82601846784. Its totient is φ = 8580738240.

The previous prime is 33081311797. The next prime is 33081311803. The reversal of 33081311802 is 20811318033.

It is a super-2 number, since 2×33081311802² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33081311802.

It is not an unprimeable number, because it can be changed into a prime (33081311803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289803 + ... + 387489.

It is an arithmetic number, because the mean of its divisors is an integer number (1290653856).

Almost surely, 2^33081311802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33081311802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41300923392).

33081311802 is an abundant number, since it is smaller than the sum of its proper divisors (49520534982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33081311802 is a wasteful number, since it uses less digits than its factorization.

33081311802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98443.

The product of its (nonzero) digits is 3456, while the sum is 30.

Adding to 33081311802 its reverse (20811318033), we get a palindrome (53892629835).

The spelling of 33081311802 in words is "thirty-three billion, eighty-one million, three hundred eleven thousand, eight hundred two".