20106375648 has 48 divisors (see below), whose sum is σ = 52803749376. Its totient is φ = 6699012480.

The previous prime is 20106375647. The next prime is 20106375661. The reversal of 20106375648 is 84657360102.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20106375647) 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 in 7 ways as a sum of consecutive naturals, for example, 163953 + ... + 259023.

It is an arithmetic number, because the mean of its divisors is an integer number (1100078112).

Almost surely, 2^20106375648 is an apocalyptic number.

It is an amenable number.

20106375648 is an abundant number, since it is smaller than the sum of its proper divisors (32697373728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20106375648 is a wasteful number, since it uses less digits than its factorization.

20106375648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97287 (or 97279 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 20106375648 in words is "twenty billion, one hundred six million, three hundred seventy-five thousand, six hundred forty-eight".