20752666748 has 24 divisors (see below), whose sum is σ = 40011000624. Its totient is φ = 9339632000.

The previous prime is 20752666721. The next prime is 20752666763. The reversal of 20752666748 is 84766625702.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20752666748.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 2330465 + ... + 2339352.

It is an arithmetic number, because the mean of its divisors is an integer number (1667125026).

Almost surely, 2^20752666748 is an apocalyptic number.

It is an amenable number.

20752666748 is a deficient number, since it is larger than the sum of its proper divisors (19258333876).

20752666748 is a wasteful number, since it uses less digits than its factorization.

20752666748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4669933 (or 4669931 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 53.

The spelling of 20752666748 in words is "twenty billion, seven hundred fifty-two million, six hundred sixty-six thousand, seven hundred forty-eight".