211100854945 has 16 divisors (see below), whose sum is σ = 253771257168. Its totient is φ = 168580776960.

The previous prime is 211100854931. The next prime is 211100854973. The reversal of 211100854945 is 549458001112.

It can be written as a sum of positive squares in 8 ways, for example, as 36302443024 + 174798411921 = 190532^2 + 418089^2 .

It is not a de Polignac number, because 211100854945 - 2²⁵ = 211067300513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211100854898 and 211100854907.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7446037 + ... + 7474333.

It is an arithmetic number, because the mean of its divisors is an integer number (15860703573).

Almost surely, 2^211100854945 is an apocalyptic number.

It is an amenable number.

211100854945 is a deficient number, since it is larger than the sum of its proper divisors (42670402223).

211100854945 is a wasteful number, since it uses less digits than its factorization.

211100854945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30900.

The product of its (nonzero) digits is 57600, while the sum is 40.

The spelling of 211100854945 in words is "two hundred eleven billion, one hundred million, eight hundred fifty-four thousand, nine hundred forty-five".