21166245914006 has 8 divisors (see below), whose sum is σ = 31908913438800. Its totient is φ = 10529941434408.

The previous prime is 21166245913999. The next prime is 21166245914041. The reversal of 21166245914006 is 60041954266112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26590760801 + ... + 26590761596.

It is an arithmetic number, because the mean of its divisors is an integer number (3988614179850).

Almost surely, 2^{21166245914006} is an apocalyptic number.

21166245914006 is a deficient number, since it is larger than the sum of its proper divisors (10742667524794).

21166245914006 is a wasteful number, since it uses less digits than its factorization.

21166245914006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53181522598.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 21166245914006 in words is "twenty-one trillion, one hundred sixty-six billion, two hundred forty-five million, nine hundred fourteen thousand, six".