33140423421552 has 160 divisors (see below), whose sum is σ = 91167764889600. Its totient is φ = 10337489403904.

The previous prime is 33140423421487. The next prime is 33140423421571. The reversal of 33140423421552 is 25512432404133.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 33140423421552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1682501368 + ... + 1682521064.

It is an arithmetic number, because the mean of its divisors is an integer number (569798530560).

Almost surely, 2^{33140423421552} 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 33140423421552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45583882444800).

33140423421552 is an abundant number, since it is smaller than the sum of its proper divisors (58027341468048).

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

33140423421552 is a wasteful number, since it uses less digits than its factorization.

33140423421552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31423 (or 31417 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 39.

Adding to 33140423421552 its reverse (25512432404133), we get a palindrome (58652855825685).

The spelling of 33140423421552 in words is "thirty-three trillion, one hundred forty billion, four hundred twenty-three million, four hundred twenty-one thousand, five hundred fifty-two".