1670216841 has 20 divisors (see below), whose sum is σ = 2511778500. Its totient is φ = 1105996896.

The previous prime is 1670216839. The next prime is 1670216887. The reversal of 1670216841 is 1486120761.

It is a happy number.

1670216841 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 130439241 + 1539777600 = 11421^2 + 39240^2 .

It is not a de Polignac number, because 1670216841 - 2¹ = 1670216839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1670216796 and 1670216805.

It is not an unprimeable number, because it can be changed into a prime (1670216441) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 57126 + ... + 81263.

It is an arithmetic number, because the mean of its divisors is an integer number (125588925).

Almost surely, 2^1670216841 is an apocalyptic number.

It is an amenable number.

1670216841 is a deficient number, since it is larger than the sum of its proper divisors (841561659).

1670216841 is a wasteful number, since it uses less digits than its factorization.

1670216841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138550 (or 138541 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1670216841 is about 40868.2864945424. The cubic root of 1670216841 is about 1186.4723438888.

The spelling of 1670216841 in words is "one billion, six hundred seventy million, two hundred sixteen thousand, eight hundred forty-one".