2156045535 has 24 divisors (see below), whose sum is σ = 4271024160. Its totient is φ = 985620672.

The previous prime is 2156045533. The next prime is 2156045579. The reversal of 2156045535 is 5355406512.

2156045535 is a `hidden beast` number, since 2 + 1 + 560 + 45 + 53 + 5 = 666.

It is not a de Polignac number, because 2156045535 - 2¹ = 2156045533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2156045535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156045531) by changing a digit.

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, 3421980 + ... + 3422609.

It is an arithmetic number, because the mean of its divisors is an integer number (177959340).

Almost surely, 2^2156045535 is an apocalyptic number.

2156045535 is a deficient number, since it is larger than the sum of its proper divisors (2114978625).

2156045535 is a wasteful number, since it uses less digits than its factorization.

2156045535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6844607 (or 6844604 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The square root of 2156045535 is about 46433.2373952108. The cubic root of 2156045535 is about 1291.8714768859.

The spelling of 2156045535 in words is "two billion, one hundred fifty-six million, forty-five thousand, five hundred thirty-five".