2106158385 has 16 divisors (see below), whose sum is σ = 3370449600. Its totient is φ = 1123085760.

The previous prime is 2106158357. The next prime is 2106158387. The reversal of 2106158385 is 5838516012.

It is a de Polignac number, because none of the positive numbers 2^k-2106158385 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2106158387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122415 + ... + 138555.

It is an arithmetic number, because the mean of its divisors is an integer number (210653100).

Almost surely, 2^2106158385 is an apocalyptic number.

It is an amenable number.

2106158385 is a deficient number, since it is larger than the sum of its proper divisors (1264291215).

2106158385 is a wasteful number, since it uses less digits than its factorization.

2106158385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24848.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 2106158385 is about 45892.9012484502. The cubic root of 2106158385 is about 1281.8297368969.

The spelling of 2106158385 in words is "two billion, one hundred six million, one hundred fifty-eight thousand, three hundred eighty-five".