20910256006 has 8 divisors (see below), whose sum is σ = 31371989040. Its totient is φ = 10452926328.

The previous prime is 20910255983. The next prime is 20910256007. The reversal of 20910256006 is 60065201902.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20910256007) 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 3 ways as a sum of consecutive naturals, for example, 1088941 + ... + 1107976.

It is an arithmetic number, because the mean of its divisors is an integer number (3921498630).

Almost surely, 2^20910256006 is an apocalyptic number.

20910256006 is a deficient number, since it is larger than the sum of its proper divisors (10461733034).

20910256006 is a wasteful number, since it uses less digits than its factorization.

20910256006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2201678.

The product of its (nonzero) digits is 6480, while the sum is 31.

Adding to 20910256006 its reverse (60065201902), we get a palindrome (80975457908).

The spelling of 20910256006 in words is "twenty billion, nine hundred ten million, two hundred fifty-six thousand, six".