20949032336 has 20 divisors (see below), whose sum is σ = 40600930764. Its totient is φ = 10471372800.

The previous prime is 20949032311. The next prime is 20949032341. The reversal of 20949032336 is 63323094902.

It can be written as a sum of positive squares in 2 ways, for example, as 17917428736 + 3031603600 = 133856^2 + 55060^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20949032293 and 20949032302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141005 + ... + 248556.

Almost surely, 2^20949032336 is an apocalyptic number.

It is an amenable number.

20949032336 is a deficient number, since it is larger than the sum of its proper divisors (19651898428).

20949032336 is a wasteful number, since it uses less digits than its factorization.

20949032336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392930 (or 392924 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 41.

The spelling of 20949032336 in words is "twenty billion, nine hundred forty-nine million, thirty-two thousand, three hundred thirty-six".