20645300230 has 8 divisors (see below), whose sum is σ = 37161540432. Its totient is φ = 8258120088.

The previous prime is 20645300209. The next prime is 20645300239. The reversal of 20645300230 is 3200354602.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20645300195 and 20645300204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20645300239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1032265002 + ... + 1032265021.

It is an arithmetic number, because the mean of its divisors is an integer number (4645192554).

Almost surely, 2^20645300230 is an apocalyptic number.

20645300230 is a deficient number, since it is larger than the sum of its proper divisors (16516240202).

20645300230 is a wasteful number, since it uses less digits than its factorization.

20645300230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064530030.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 20645300230 its reverse (3200354602), we get a palindrome (23845654832).

The spelling of 20645300230 in words is "twenty billion, six hundred forty-five million, three hundred thousand, two hundred thirty".