20726503006 has 16 divisors (see below), whose sum is σ = 33918704640. Its totient is φ = 9420413080.

The previous prime is 20726502961. The next prime is 20726503013. The reversal of 20726503006 is 60030562702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345795 + ... + 401281.

It is an arithmetic number, because the mean of its divisors is an integer number (2119919040).

Almost surely, 2^20726503006 is an apocalyptic number.

20726503006 is a deficient number, since it is larger than the sum of its proper divisors (13192201634).

20726503006 is a wasteful number, since it uses less digits than its factorization.

20726503006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72479.

The product of its (nonzero) digits is 15120, while the sum is 31.

The spelling of 20726503006 in words is "twenty billion, seven hundred twenty-six million, five hundred three thousand, six".