33545340020 has 24 divisors (see below), whose sum is σ = 70456008168. Its totient is φ = 13416080000.

The previous prime is 33545340013. The next prime is 33545340053. The reversal of 33545340020 is 2004354533.

It can be written as a sum of positive squares in 4 ways, for example, as 6667049104 + 26878290916 = 81652^2 + 163946^2 .

It is a super-2 number, since 2×33545340020² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8870 + ... + 259170.

It is an arithmetic number, because the mean of its divisors is an integer number (2935667007).

Almost surely, 2^33545340020 is an apocalyptic number.

It is an amenable number.

33545340020 is an abundant number, since it is smaller than the sum of its proper divisors (36910668148).

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

33545340020 is a wasteful number, since it uses less digits than its factorization.

33545340020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257011 (or 257009 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 29.

Adding to 33545340020 its reverse (2004354533), we get a palindrome (35549694553).

The spelling of 33545340020 in words is "thirty-three billion, five hundred forty-five million, three hundred forty thousand, twenty".