2106101645 has 16 divisors (see below), whose sum is σ = 2661742080. Its totient is φ = 1595361600.

The previous prime is 2106101617. The next prime is 2106101671. The reversal of 2106101645 is 5461016012.

It is not a de Polignac number, because 2106101645 - 2¹² = 2106097549 is a prime.

It is a super-3 number, since 3×2106101645³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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, 221540 + ... + 230850.

It is an arithmetic number, because the mean of its divisors is an integer number (166358880).

Almost surely, 2^2106101645 is an apocalyptic number.

It is an amenable number.

2106101645 is a deficient number, since it is larger than the sum of its proper divisors (555640435).

2106101645 is a wasteful number, since it uses less digits than its factorization.

2106101645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11716.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2106101645 is about 45892.2830658925. The cubic root of 2106101645 is about 1281.8182259436.

Adding to 2106101645 its reverse (5461016012), we get a palindrome (7567117657).

The spelling of 2106101645 in words is "two billion, one hundred six million, one hundred one thousand, six hundred forty-five".