20345333180000 has 240 divisors, whose sum is σ = 50407939745856. Its totient is φ = 8080537920000.

The previous prime is 20345333179999. The next prime is 20345333180009. The reversal of 20345333180000 is 8133354302.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20345333180009) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1869454559 + ... + 1869465441.

Almost surely, 2^{20345333180000} is an apocalyptic number.

20345333180000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20345333180000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25203969872928).

20345333180000 is an abundant number, since it is smaller than the sum of its proper divisors (30062606565856).

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

20345333180000 is a wasteful number, since it uses less digits than its factorization.

20345333180000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11567 (or 11544 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 20345333180000 in words is "twenty trillion, three hundred forty-five billion, three hundred thirty-three million, one hundred eighty thousand".