33403471105172 has 96 divisors (see below), whose sum is σ = 72230837978880. Its totient is φ = 13194462366720.

The previous prime is 33403471105171. The next prime is 33403471105183. The reversal of 33403471105172 is 27150117430433.

It is a super-2 number, since 2×33403471105172² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33403471105171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 213552272 + ... + 213708632.

It is an arithmetic number, because the mean of its divisors is an integer number (752404562280).

Almost surely, 2^{33403471105172} 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 33403471105172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36115418989440).

33403471105172 is an abundant number, since it is smaller than the sum of its proper divisors (38827366873708).

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

33403471105172 is a wasteful number, since it uses less digits than its factorization.

33403471105172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167281 (or 167279 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 33403471105172 in words is "thirty-three trillion, four hundred three billion, four hundred seventy-one million, one hundred five thousand, one hundred seventy-two".