2106045655 has 32 divisors (see below), whose sum is σ = 2910593664. Its totient is φ = 1433051136.

The previous prime is 2106045653. The next prime is 2106045659. The reversal of 2106045655 is 5565406012.

It is a cyclic number.

It is not a de Polignac number, because 2106045655 - 2¹ = 2106045653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2106045655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106045653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4608187 + ... + 4608643.

It is an arithmetic number, because the mean of its divisors is an integer number (90956052).

Almost surely, 2^2106045655 is an apocalyptic number.

2106045655 is a deficient number, since it is larger than the sum of its proper divisors (804548009).

2106045655 is a wasteful number, since it uses less digits than its factorization.

2106045655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 2106045655 is about 45891.6730464253. The cubic root of 2106045655 is about 1281.8068669416.

The spelling of 2106045655 in words is "two billion, one hundred six million, forty-five thousand, six hundred fifty-five".