2106640533 has 32 divisors (see below), whose sum is σ = 2975823360. Its totient is φ = 1323445760.

The previous prime is 2106640519. The next prime is 2106640537. The reversal of 2106640533 is 3350466012.

It is a cyclic number.

It is not a de Polignac number, because 2106640533 - 2⁹ = 2106640021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2106640533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106640537) 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, 2767873 + ... + 2768633.

It is an arithmetic number, because the mean of its divisors is an integer number (92994480).

Almost surely, 2^2106640533 is an apocalyptic number.

It is an amenable number.

2106640533 is a deficient number, since it is larger than the sum of its proper divisors (869182827).

2106640533 is a wasteful number, since it uses less digits than its factorization.

2106640533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 2106640533 is about 45898.1539171239. The cubic root of 2106640533 is about 1281.9275428508.

The spelling of 2106640533 in words is "two billion, one hundred six million, six hundred forty thousand, five hundred thirty-three".