20623223075 has 48 divisors (see below), whose sum is σ = 31704429120. Its totient is φ = 12958341120.

The previous prime is 20623223063. The next prime is 20623223099. The reversal of 20623223075 is 57032232602.

It is not a de Polignac number, because 20623223075 - 2¹⁸ = 20622960931 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 278591 + ... + 344759.

It is an arithmetic number, because the mean of its divisors is an integer number (660508940).

Almost surely, 2^20623223075 is an apocalyptic number.

20623223075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20623223075 is a deficient number, since it is larger than the sum of its proper divisors (11081206045).

20623223075 is a wasteful number, since it uses less digits than its factorization.

20623223075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66336 (or 66331 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 32.

Adding to 20623223075 its reverse (57032232602), we get a palindrome (77655455677).

The spelling of 20623223075 in words is "twenty billion, six hundred twenty-three million, two hundred twenty-three thousand, seventy-five".