20768158203 has 16 divisors (see below), whose sum is σ = 29934347520. Its totient is φ = 12731804064.

The previous prime is 20768158193. The next prime is 20768158211. The reversal of 20768158203 is 30285186702.

It is not a de Polignac number, because 20768158203 - 2⁶ = 20768158139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20768158903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1002133 + ... + 1022646.

It is an arithmetic number, because the mean of its divisors is an integer number (1870896720).

Almost surely, 2^20768158203 is an apocalyptic number.

20768158203 is a deficient number, since it is larger than the sum of its proper divisors (9166189317).

20768158203 is a wasteful number, since it uses less digits than its factorization.

20768158203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025058.

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 20768158203 in words is "twenty billion, seven hundred sixty-eight million, one hundred fifty-eight thousand, two hundred three".