20011650016 has 24 divisors (see below), whose sum is σ = 39937638384. Its totient is φ = 9868757760.

The previous prime is 20011649963. The next prime is 20011650077. The reversal of 20011650016 is 61005611002.

It is a super-2 number, since 2×20011650016² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4280980 + ... + 4285651.

It is an arithmetic number, because the mean of its divisors is an integer number (1664068266).

Almost surely, 2^20011650016 is an apocalyptic number.

It is an amenable number.

20011650016 is a deficient number, since it is larger than the sum of its proper divisors (19925988368).

20011650016 is an equidigital number, since it uses as much as digits as its factorization.

20011650016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8566714 (or 8566706 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The spelling of 20011650016 in words is "twenty billion, eleven million, six hundred fifty thousand, sixteen".