1670168539 has 16 divisors (see below), whose sum is σ = 1821349600. Its totient is φ = 1522354176.

The previous prime is 1670168509. The next prime is 1670168543. The reversal of 1670168539 is 9358610761.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1670168539 - 2⁷ = 1670168411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1670168509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346357 + ... + 351145.

It is an arithmetic number, because the mean of its divisors is an integer number (113834350).

Almost surely, 2^1670168539 is an apocalyptic number.

1670168539 is a deficient number, since it is larger than the sum of its proper divisors (151181061).

1670168539 is a wasteful number, since it uses less digits than its factorization.

1670168539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5134.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 1670168539 is about 40867.6955430570. The cubic root of 1670168539 is about 1186.4609063440.

The spelling of 1670168539 in words is "one billion, six hundred seventy million, one hundred sixty-eight thousand, five hundred thirty-nine".