20005455101 has 8 divisors (see below), whose sum is σ = 20496797280. Its totient is φ = 19518330832.

The previous prime is 20005455097. The next prime is 20005455121. The reversal of 20005455101 is 10155450002.

It is a happy number.

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 20005455101 - 2² = 20005455097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20005455121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1044875 + ... + 1063848.

It is an arithmetic number, because the mean of its divisors is an integer number (2562099660).

Almost surely, 2^20005455101 is an apocalyptic number.

It is an amenable number.

20005455101 is a deficient number, since it is larger than the sum of its proper divisors (491342179).

20005455101 is a wasteful number, since it uses less digits than its factorization.

20005455101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108955.

The product of its (nonzero) digits is 1000, while the sum is 23.

The spelling of 20005455101 in words is "twenty billion, five million, four hundred fifty-five thousand, one hundred one".