21066371371008 has 104 divisors (see below), whose sum is σ = 62411258972000. Its totient is φ = 7022123753472.

The previous prime is 21066371370977. The next prime is 21066371371009. The reversal of 21066371371008 is 80017317366012.

21066371371008 is a `hidden beast` number, since 2 + 1 + 0 + 6 + 637 + 1 + 3 + 7 + 1 + 0 + 0 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (21066371371009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95133058 + ... + 95354241.

Almost surely, 2^{21066371371008} is an apocalyptic number.

It is an amenable number.

21066371371008 is an abundant number, since it is smaller than the sum of its proper divisors (41344887600992).

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

21066371371008 is an equidigital number, since it uses as much as digits as its factorization.

21066371371008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190487332 (or 190487304 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 21066371371008 in words is "twenty-one trillion, sixty-six billion, three hundred seventy-one million, three hundred seventy-one thousand, eight".