20343200222040 has 32 divisors (see below), whose sum is σ = 61029600666480. Its totient is φ = 5424853392512.

The previous prime is 20343200221961. The next prime is 20343200222053. The reversal of 20343200222040 is 4022200234302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20343200222040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84763334139 + ... + 84763334378.

Almost surely, 2^{20343200222040} is an apocalyptic number.

20343200222040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20343200222040 is an abundant number, since it is smaller than the sum of its proper divisors (40686400444440).

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

20343200222040 is a wasteful number, since it uses less digits than its factorization.

20343200222040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169526668531 (or 169526668527 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 20343200222040 its reverse (4022200234302), we get a palindrome (24365400456342).

The spelling of 20343200222040 in words is "twenty trillion, three hundred forty-three billion, two hundred million, two hundred twenty-two thousand, forty".