20110211968 has 64 divisors (see below), whose sum is σ = 49949089920. Its totient is φ = 7835143680.

The previous prime is 20110211941. The next prime is 20110211969. The reversal of 20110211968 is 86911201102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110211969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010346 + ... + 1030057.

It is an arithmetic number, because the mean of its divisors is an integer number (780454530).

Almost surely, 2^20110211968 is an apocalyptic number.

20110211968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20110211968 is an abundant number, since it is smaller than the sum of its proper divisors (29838877952).

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

20110211968 is a wasteful number, since it uses less digits than its factorization.

20110211968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040435 (or 2040423 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 31.

The spelling of 20110211968 in words is "twenty billion, one hundred ten million, two hundred eleven thousand, nine hundred sixty-eight".