20706207320 has 32 divisors (see below), whose sum is σ = 46614035520. Its totient is φ = 8278026240.

The previous prime is 20706207293. The next prime is 20706207323. The reversal of 20706207320 is 2370260702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20706207323) 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, 63497 + ... + 213176.

It is an arithmetic number, because the mean of its divisors is an integer number (1456688610).

Almost surely, 2^20706207320 is an apocalyptic number.

20706207320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20706207320 is an abundant number, since it is smaller than the sum of its proper divisors (25907828200).

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

20706207320 is a wasteful number, since it uses less digits than its factorization.

20706207320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278555 (or 278551 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 29.

The spelling of 20706207320 in words is "twenty billion, seven hundred six million, two hundred seven thousand, three hundred twenty".