20346502145032 has 128 divisors (see below), whose sum is σ = 45112015503360. Its totient is φ = 8418794952960.

The previous prime is 20346502145029. The next prime is 20346502145033. The reversal of 20346502145032 is 23054120564302.

It is a super-3 number, since 3×20346502145032³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20346502144982 and 20346502145000.

It is not an unprimeable number, because it can be changed into a prime (20346502145033) 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, 3207706453 + ... + 3207712795.

It is an arithmetic number, because the mean of its divisors is an integer number (352437621120).

Almost surely, 2^{20346502145032} 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 20346502145032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22556007751680).

20346502145032 is an abundant number, since it is smaller than the sum of its proper divisors (24765513358328).

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

20346502145032 is a wasteful number, since it uses less digits than its factorization.

20346502145032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10443 (or 10439 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 20346502145032 in words is "twenty trillion, three hundred forty-six billion, five hundred two million, one hundred forty-five thousand, thirty-two".