20901672006 has 16 divisors (see below), whose sum is σ = 44262364464. Its totient is φ = 6557387264.

The previous prime is 20901671963. The next prime is 20901672041. The reversal of 20901672006 is 60027610902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102459075 + ... + 102459278.

It is an arithmetic number, because the mean of its divisors is an integer number (2766397779).

Almost surely, 2^20901672006 is an apocalyptic number.

20901672006 is an abundant number, since it is smaller than the sum of its proper divisors (23360692458).

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

20901672006 is a wasteful number, since it uses less digits than its factorization.

20901672006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204918375.

The product of its (nonzero) digits is 9072, while the sum is 33.

The spelling of 20901672006 in words is "twenty billion, nine hundred one million, six hundred seventy-two thousand, six".