20663828270084 has 6 divisors (see below), whose sum is σ = 36161699472654. Its totient is φ = 10331914135040.

The previous prime is 20663828270077. The next prime is 20663828270087. The reversal of 20663828270084 is 48007282836602.

It can be written as a sum of positive squares in only one way, i.e., 19580713500100 + 1083114769984 = 4425010^2 + 1040728^2 .

It is not an unprimeable number, because it can be changed into a prime (20663828270087) by changing a digit.

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, 2582978533757 + ... + 2582978533764.

It is an arithmetic number, because the mean of its divisors is an integer number (6026949912109).

Almost surely, 2^{20663828270084} is an apocalyptic number.

It is an amenable number.

20663828270084 is a deficient number, since it is larger than the sum of its proper divisors (15497871202570).

20663828270084 is a wasteful number, since it uses less digits than its factorization.

20663828270084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5165957067525 (or 5165957067523 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 56.

The spelling of 20663828270084 in words is "twenty trillion, six hundred sixty-three billion, eight hundred twenty-eight million, two hundred seventy thousand, eighty-four".