20720063012 has 24 divisors (see below), whose sum is σ = 41883337440. Its totient is φ = 8864197760.

The previous prime is 20720063003. The next prime is 20720063017. The reversal of 20720063012 is 21036002702.

It is a super-2 number, since 2×20720063012² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20720063017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13849562 + ... + 13851057.

It is an arithmetic number, because the mean of its divisors is an integer number (1745139060).

Almost surely, 2^20720063012 is an apocalyptic number.

20720063012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20720063012 is an abundant number, since it is smaller than the sum of its proper divisors (21163274428).

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

20720063012 is a wasteful number, since it uses less digits than its factorization.

20720063012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27700651 (or 27700649 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 20720063012 its reverse (21036002702), we get a palindrome (41756065714).

The spelling of 20720063012 in words is "twenty billion, seven hundred twenty million, sixty-three thousand, twelve".