33545556220000 has 240 divisors, whose sum is σ = 90921005827344. Its totient is φ = 12077600000000.

The previous prime is 33545556219979. The next prime is 33545556220079. The reversal of 33545556220000 is 2265554533.

It is a super-2 number, since 2×33545556220000² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21465150 + ... + 22974850.

Almost surely, 2^{33545556220000} 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 33545556220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45460502913672).

33545556220000 is an abundant number, since it is smaller than the sum of its proper divisors (57375449607344).

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

33545556220000 is a wasteful number, since it uses less digits than its factorization.

33545556220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509843 (or 1509820 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 40.

The spelling of 33545556220000 in words is "thirty-three trillion, five hundred forty-five billion, five hundred fifty-six million, two hundred twenty thousand".