20011969150 has 12 divisors (see below), whose sum is σ = 37222262712. Its totient is φ = 8004787640.

The previous prime is 20011969111. The next prime is 20011969151. The reversal of 20011969150 is 5196911002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011969151) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 200119642 + ... + 200119741.

It is an arithmetic number, because the mean of its divisors is an integer number (3101855226).

Almost surely, 2^20011969150 is an apocalyptic number.

20011969150 is a deficient number, since it is larger than the sum of its proper divisors (17210293562).

20011969150 is a wasteful number, since it uses less digits than its factorization.

20011969150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400239395 (or 400239390 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 34.

The spelling of 20011969150 in words is "twenty billion, eleven million, nine hundred sixty-nine thousand, one hundred fifty".