20670056055 has 24 divisors (see below), whose sum is σ = 39085197840. Its totient is φ = 10021845120.

The previous prime is 20670056039. The next prime is 20670056083. The reversal of 20670056055 is 55065007602.

20670056055 is a `hidden beast` number, since 20 + 6 + 70 + 0 + 560 + 5 + 5 = 666.

It is not a de Polignac number, because 20670056055 - 2⁴ = 20670056039 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20878350 + ... + 20879339.

It is an arithmetic number, because the mean of its divisors is an integer number (1628549910).

Almost surely, 2^20670056055 is an apocalyptic number.

20670056055 is a deficient number, since it is larger than the sum of its proper divisors (18415141785).

20670056055 is a wasteful number, since it uses less digits than its factorization.

20670056055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41757711 (or 41757708 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The spelling of 20670056055 in words is "twenty billion, six hundred seventy million, fifty-six thousand, fifty-five".