20336512020 has 384 divisors, whose sum is σ = 66255501312. Its totient is φ = 4615833600.

The previous prime is 20336511991. The next prime is 20336512067. The reversal of 20336512020 is 2021563302.

It is a super-3 number, since 3×20336512020³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 112356330 + ... + 112356510.

It is an arithmetic number, because the mean of its divisors is an integer number (172540368).

Almost surely, 2^20336512020 is an apocalyptic number.

20336512020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20336512020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33127750656).

20336512020 is an abundant number, since it is smaller than the sum of its proper divisors (45918989292).

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

20336512020 is a wasteful number, since it uses less digits than its factorization.

20336512020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The spelling of 20336512020 in words is "twenty billion, three hundred thirty-six million, five hundred twelve thousand, twenty".