20406055101 has 16 divisors (see below), whose sum is σ = 29083501440. Its totient is φ = 12695175680.

The previous prime is 20406055099. The next prime is 20406055127. The reversal of 20406055101 is 10155060402.

It is not a de Polignac number, because 20406055101 - 2¹ = 20406055099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20406055171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3603756 + ... + 3609413.

It is an arithmetic number, because the mean of its divisors is an integer number (1817718840).

Almost surely, 2^20406055101 is an apocalyptic number.

It is an amenable number.

20406055101 is a deficient number, since it is larger than the sum of its proper divisors (8677446339).

20406055101 is a wasteful number, since it uses less digits than its factorization.

20406055101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7213236.

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 20406055101 in words is "twenty billion, four hundred six million, fifty-five thousand, one hundred one".