20329766960 has 40 divisors (see below), whose sum is σ = 47274295680. Its totient is φ = 8130601472.

The previous prime is 20329766959. The next prime is 20329766971. The reversal of 20329766960 is 6966792302.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 20329766899 and 20329766908.

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, 597281 + ... + 630399.

It is an arithmetic number, because the mean of its divisors is an integer number (1181857392).

Almost surely, 2^20329766960 is an apocalyptic number.

20329766960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20329766960 is an abundant number, since it is smaller than the sum of its proper divisors (26944528720).

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

20329766960 is a wasteful number, since it uses less digits than its factorization.

20329766960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40805 (or 40799 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 50.

The spelling of 20329766960 in words is "twenty billion, three hundred twenty-nine million, seven hundred sixty-six thousand, nine hundred sixty".