20203353386672 has 10 divisors (see below), whose sum is σ = 39143997186708. Its totient is φ = 10101676693328.

The previous prime is 20203353386651. The next prime is 20203353386731. The reversal of 20203353386672 is 27668335330202.

It is a self number, because there is not a number n which added to its sum of digits gives 20203353386672.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631354793318 + ... + 631354793349.

Almost surely, 2^{20203353386672} is an apocalyptic number.

It is an amenable number.

20203353386672 is a deficient number, since it is larger than the sum of its proper divisors (18940643800036).

20203353386672 is a wasteful number, since it uses less digits than its factorization.

20203353386672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262709586675 (or 1262709586669 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 50.

The spelling of 20203353386672 in words is "twenty trillion, two hundred three billion, three hundred fifty-three million, three hundred eighty-six thousand, six hundred seventy-two".