1671161206 has 32 divisors (see below), whose sum is σ = 3039998976. Its totient is φ = 678564000.

The previous prime is 1671161197. The next prime is 1671161231. The reversal of 1671161206 is 6021611761.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85380 + ... + 103111.

It is an arithmetic number, because the mean of its divisors is an integer number (94999968).

Almost surely, 2^1671161206 is an apocalyptic number.

1671161206 is a deficient number, since it is larger than the sum of its proper divisors (1368837770).

1671161206 is a wasteful number, since it uses less digits than its factorization.

1671161206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188548.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1671161206 is about 40879.8386249261. The cubic root of 1671161206 is about 1186.6959180217.

Adding to 1671161206 its reverse (6021611761), we get a palindrome (7692772967).

The spelling of 1671161206 in words is "one billion, six hundred seventy-one million, one hundred sixty-one thousand, two hundred six".