20623180306 has 16 divisors (see below), whose sum is σ = 31112875008. Its totient is φ = 10252278400.

The previous prime is 20623180283. The next prime is 20623180307. The reversal of 20623180306 is 60308132602.

It is not an unprimeable number, because it can be changed into a prime (20623180307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 781971 + ... + 807913.

It is an arithmetic number, because the mean of its divisors is an integer number (1944554688).

Almost surely, 2^20623180306 is an apocalyptic number.

20623180306 is a deficient number, since it is larger than the sum of its proper divisors (10489694702).

20623180306 is a wasteful number, since it uses less digits than its factorization.

20623180306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28217.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 20623180306 in words is "twenty billion, six hundred twenty-three million, one hundred eighty thousand, three hundred six".