20006040055 has 16 divisors (see below), whose sum is σ = 24059449440. Its totient is φ = 15970073728.

The previous prime is 20006040037. The next prime is 20006040107. The reversal of 20006040055 is 55004060002.

It is a cyclic number.

It is not a de Polignac number, because 20006040055 - 2¹⁷ = 20005908983 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8552076 + ... + 8554414.

It is an arithmetic number, because the mean of its divisors is an integer number (1503715590).

Almost surely, 2^20006040055 is an apocalyptic number.

20006040055 is a deficient number, since it is larger than the sum of its proper divisors (4053409385).

20006040055 is a wasteful number, since it uses less digits than its factorization.

20006040055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330.

The product of its (nonzero) digits is 1200, while the sum is 22.

The spelling of 20006040055 in words is "twenty billion, six million, forty thousand, fifty-five".