20299063512 has 128 divisors (see below), whose sum is σ = 63103219200. Its totient is φ = 5298352128.

The previous prime is 20299063511. The next prime is 20299063523. The reversal of 20299063512 is 21536099202.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20299063511) 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 31 ways as a sum of consecutive naturals, for example, 163939 + ... + 259757.

It is an arithmetic number, because the mean of its divisors is an integer number (492993900).

Almost surely, 2^20299063512 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 20299063512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31551609600).

20299063512 is an abundant number, since it is smaller than the sum of its proper divisors (42804155688).

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

20299063512 is a wasteful number, since it uses less digits than its factorization.

20299063512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95945 (or 95941 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The spelling of 20299063512 in words is "twenty billion, two hundred ninety-nine million, sixty-three thousand, five hundred twelve".