20111650653 has 8 divisors (see below), whose sum is σ = 26816491168. Its totient is φ = 13407288624.

The previous prime is 20111650633. The next prime is 20111650673. The reversal of 20111650653 is 35605611102.

It is an interprime number because it is at equal distance from previous prime (20111650633) and next prime (20111650673).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20111650653 - 2⁸ = 20111650397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20111650653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111650633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6175 + ... + 200652.

It is an arithmetic number, because the mean of its divisors is an integer number (3352061396).

Almost surely, 2^20111650653 is an apocalyptic number.

It is an amenable number.

20111650653 is a deficient number, since it is larger than the sum of its proper divisors (6704840515).

20111650653 is a wasteful number, since it uses less digits than its factorization.

20111650653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239243.

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 20111650653 in words is "twenty billion, one hundred eleven million, six hundred fifty thousand, six hundred fifty-three".