33553045421240 has 64 divisors (see below), whose sum is σ = 75578561654400. Its totient is φ = 13406254480512.

The previous prime is 33553045421123. The next prime is 33553045421299. The reversal of 33553045421240 is 4212454035533.

It is a super-2 number, since 2×33553045421240² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159183359 + ... + 159394001.

It is an arithmetic number, because the mean of its divisors is an integer number (1180915025850).

Almost surely, 2^{33553045421240} is an apocalyptic number.

It is an amenable number.

33553045421240 is an abundant number, since it is smaller than the sum of its proper divisors (42025516233160).

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

33553045421240 is a wasteful number, since it uses less digits than its factorization.

33553045421240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215076 (or 215072 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 41.

Adding to 33553045421240 its reverse (4212454035533), we get a palindrome (37765499456773).

The spelling of 33553045421240 in words is "thirty-three trillion, five hundred fifty-three billion, forty-five million, four hundred twenty-one thousand, two hundred forty".