20857327716 has 24 divisors (see below), whose sum is σ = 49022336160. Its totient is φ = 6901694272.

The previous prime is 20857327703. The next prime is 20857327741. The reversal of 20857327716 is 61772375802.

It is a super-3 number, since 3×20857327716³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6341826 + ... + 6345113.

It is an arithmetic number, because the mean of its divisors is an integer number (2042597340).

Almost surely, 2^20857327716 is an apocalyptic number.

It is an amenable number.

20857327716 is an abundant number, since it is smaller than the sum of its proper divisors (28165008444).

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

20857327716 is a wasteful number, since it uses less digits than its factorization.

20857327716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12687083 (or 12687081 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 48.

The spelling of 20857327716 in words is "twenty billion, eight hundred fifty-seven million, three hundred twenty-seven thousand, seven hundred sixteen".