33544440012 has 48 divisors (see below), whose sum is σ = 81143112960. Its totient is φ = 10772741952.

The previous prime is 33544440011. The next prime is 33544440043. The reversal of 33544440012 is 21004444533.

It is a super-2 number, since 2×33544440012² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33544440011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59313 + ... + 265719.

It is an arithmetic number, because the mean of its divisors is an integer number (1690481520).

Almost surely, 2^33544440012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33544440012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40571556480).

33544440012 is an abundant number, since it is smaller than the sum of its proper divisors (47598672948).

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

33544440012 is a wasteful number, since it uses less digits than its factorization.

33544440012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206910 (or 206908 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 33544440012 its reverse (21004444533), we get a palindrome (54548884545).

The spelling of 33544440012 in words is "thirty-three billion, five hundred forty-four million, four hundred forty thousand, twelve".