20732752816 has 10 divisors (see below), whose sum is σ = 40169708612. Its totient is φ = 10366376400.

The previous prime is 20732752793. The next prime is 20732752837. The reversal of 20732752816 is 61825723702.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 647898510 + ... + 647898541.

Almost surely, 2^20732752816 is an apocalyptic number.

It is an amenable number.

20732752816 is a deficient number, since it is larger than the sum of its proper divisors (19436955796).

20732752816 is a wasteful number, since it uses less digits than its factorization.

20732752816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295797059 (or 1295797053 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 20732752816 in words is "twenty billion, seven hundred thirty-two million, seven hundred fifty-two thousand, eight hundred sixteen".