20010668881 has 8 divisors (see below), whose sum is σ = 24072985280. Its totient is φ = 16249264848.

The previous prime is 20010668851. The next prime is 20010668891. The reversal of 20010668881 is 18886601002.

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

It is a cyclic number.

It is not a de Polignac number, because 20010668881 - 2⁵ = 20010668849 is a prime.

It is a super-2 number, since 2×20010668881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010668801) 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, 75227946 + ... + 75228211.

It is an arithmetic number, because the mean of its divisors is an integer number (3009123160).

Almost surely, 2^20010668881 is an apocalyptic number.

It is an amenable number.

20010668881 is a deficient number, since it is larger than the sum of its proper divisors (4062316399).

20010668881 is a wasteful number, since it uses less digits than its factorization.

20010668881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150456183.

The product of its (nonzero) digits is 36864, while the sum is 40.

The spelling of 20010668881 in words is "twenty billion, ten million, six hundred sixty-eight thousand, eight hundred eighty-one".