20111650632 has 96 divisors (see below), whose sum is σ = 57892910400. Its totient is φ = 6289342848.

The previous prime is 20111650631. The next prime is 20111650633. The reversal of 20111650632 is 23605611102.

20111650632 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 1 + 650 + 6 + 3 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (20111650631) and next prime (20111650633).

It is a super-2 number, since 2×20111650632² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20111650596 and 20111650605.

It is not an unprimeable number, because it can be changed into a prime (20111650631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69538 + ... + 212270.

It is an arithmetic number, because the mean of its divisors is an integer number (603051150).

Almost surely, 2^20111650632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20111650632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28946455200).

20111650632 is an abundant number, since it is smaller than the sum of its proper divisors (37781259768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20111650632 is a wasteful number, since it uses less digits than its factorization.

20111650632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142867 (or 142860 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 20111650632 in words is "twenty billion, one hundred eleven million, six hundred fifty thousand, six hundred thirty-two".