20345032402200 has 384 divisors, whose sum is σ = 78514171200000. Its totient is φ = 4798827763200.

The previous prime is 20345032402193. The next prime is 20345032402207. The reversal of 20345032402200 is 220423054302.

It is a happy number.

20345032402200 is a `hidden beast` number, since 2 + 0 + 3 + 4 + 50 + 3 + 2 + 402 + 200 = 666.

It is an interprime number because it is at equal distance from previous prime (20345032402193) and next prime (20345032402207).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20345032402207) 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, 2430700 + ... + 6826299.

It is an arithmetic number, because the mean of its divisors is an integer number (204463987500).

Almost surely, 2^{20345032402200} is an apocalyptic number.

20345032402200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20345032402200 is an abundant number, since it is smaller than the sum of its proper divisors (58169138797800).

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

20345032402200 is a wasteful number, since it uses less digits than its factorization.

20345032402200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9257072 (or 9257057 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 20345032402200 its reverse (220423054302), we get a palindrome (20565455456502).

The spelling of 20345032402200 in words is "twenty trillion, three hundred forty-five billion, thirty-two million, four hundred two thousand, two hundred".