20052111976 has 32 divisors (see below), whose sum is σ = 40495674240. Its totient is φ = 9253487808.

The previous prime is 20052111971. The next prime is 20052111977. The reversal of 20052111976 is 67911125002.

It is not an unprimeable number, because it can be changed into a prime (20052111971) 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, 1416405 + ... + 1430491.

It is an arithmetic number, because the mean of its divisors is an integer number (1265489820).

Almost surely, 2^20052111976 is an apocalyptic number.

20052111976 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20052111976 is an abundant number, since it is smaller than the sum of its proper divisors (20443562264).

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

20052111976 is a wasteful number, since it uses less digits than its factorization.

20052111976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27793 (or 27789 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 34.

Adding to 20052111976 its reverse (67911125002), we get a palindrome (87963236978).

The spelling of 20052111976 in words is "twenty billion, fifty-two million, one hundred eleven thousand, nine hundred seventy-six".