33500020338 has 24 divisors (see below), whose sum is σ = 75271651728. Its totient is φ = 11166673284.

The previous prime is 33500020319. The next prime is 33500020339. The reversal of 33500020338 is 83302000533.

It is a happy number.

It is a super-2 number, since 2×33500020338² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33500020339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34464556 + ... + 34465527.

It is an arithmetic number, because the mean of its divisors is an integer number (3136318822).

Almost surely, 2^33500020338 is an apocalyptic number.

33500020338 is an abundant number, since it is smaller than the sum of its proper divisors (41771631390).

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

33500020338 is an equidigital number, since it uses as much as digits as its factorization.

33500020338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68930100 (or 68930088 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The spelling of 33500020338 in words is "thirty-three billion, five hundred million, twenty thousand, three hundred thirty-eight".