20760067688 has 8 divisors (see below), whose sum is σ = 38925126930. Its totient is φ = 10380033840.

The previous prime is 20760067681. The next prime is 20760067703. The reversal of 20760067688 is 88676006702.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13484318884 + 7275748804 = 116122^2 + 85298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (20760067681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1297504223 + ... + 1297504238.

Almost surely, 2^20760067688 is an apocalyptic number.

It is an amenable number.

20760067688 is a deficient number, since it is larger than the sum of its proper divisors (18165059242).

20760067688 is a wasteful number, since it uses less digits than its factorization.

20760067688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595008467 (or 2595008463 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 20760067688 in words is "twenty billion, seven hundred sixty million, sixty-seven thousand, six hundred eighty-eight".