20012099976 has 192 divisors, whose sum is σ = 62259321600. Its totient is φ = 5949440640.

The previous prime is 20012099971. The next prime is 20012099981. The reversal of 20012099976 is 67999021002.

It is an interprime number because it is at equal distance from previous prime (20012099971) and next prime (20012099981).

It is not an unprimeable number, because it can be changed into a prime (20012099971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1377985 + ... + 1392431.

It is an arithmetic number, because the mean of its divisors is an integer number (324267300).

Almost surely, 2^20012099976 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 20012099976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31129660800).

20012099976 is an abundant number, since it is smaller than the sum of its proper divisors (42247221624).

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

20012099976 is a wasteful number, since it uses less digits than its factorization.

20012099976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14537 (or 14516 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The spelling of 20012099976 in words is "twenty billion, twelve million, ninety-nine thousand, nine hundred seventy-six".