20333346901890 has 192 divisors, whose sum is σ = 56326775279616. Its totient is φ = 4653934272000.

The previous prime is 20333346901871. The next prime is 20333346901897. The reversal of 20333346901890 is 9810964333302.

It is a happy number.

It is a super-2 number, since 2×20333346901890² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20333346901897) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16605429 + ... + 17787831.

It is an arithmetic number, because the mean of its divisors is an integer number (293368621248).

Almost surely, 2^{20333346901890} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20333346901890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28163387639808).

20333346901890 is an abundant number, since it is smaller than the sum of its proper divisors (35993428377726).

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

20333346901890 is a wasteful number, since it uses less digits than its factorization.

20333346901890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182537 (or 1182496 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 51.

The spelling of 20333346901890 in words is "twenty trillion, three hundred thirty-three billion, three hundred forty-six million, nine hundred one thousand, eight hundred ninety".