4166856195745 has 16 divisors (see below), whose sum is σ = 5476922548560. Its totient is φ = 3029211480064.

The previous prime is 4166856195683. The next prime is 4166856195787. The reversal of 4166856195745 is 5475916586614.

4166856195745 = 1443408² + 1443409².

It can be written as a sum of positive squares in 8 ways, for example, as 83336719761 + 4083519475984 = 288681^2 + 2020772^2 .

It is not a de Polignac number, because 4166856195745 - 2²¹ = 4166854098593 is a prime.

It is a super-2 number, since 2×4166856195745² (a number of 26 digits) contains 22 as substring.

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, 845201632 + ... + 845206561.

It is an arithmetic number, because the mean of its divisors is an integer number (342307659285).

Almost surely, 2^{4166856195745} is an apocalyptic number.

4166856195745 is the 1443409-th centered square number.

It is an amenable number.

4166856195745 is a deficient number, since it is larger than the sum of its proper divisors (1310066352815).

4166856195745 is a wasteful number, since it uses less digits than its factorization.

4166856195745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690408244.

The product of its digits is 217728000, while the sum is 67.

The spelling of 4166856195745 in words is "four trillion, one hundred sixty-six billion, eight hundred fifty-six million, one hundred ninety-five thousand, seven hundred forty-five".