1995181006 has 32 divisors (see below), whose sum is σ = 3685667328. Its totient is φ = 788819040.

The previous prime is 1995180989. The next prime is 1995181009. The reversal of 1995181006 is 6001815991.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1995181006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995181009) 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, 508191 + ... + 512101.

It is an arithmetic number, because the mean of its divisors is an integer number (115177104).

Almost surely, 2^1995181006 is an apocalyptic number.

1995181006 is a deficient number, since it is larger than the sum of its proper divisors (1690486322).

1995181006 is a wasteful number, since it uses less digits than its factorization.

1995181006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6736.

The product of its (nonzero) digits is 19440, while the sum is 40.

The square root of 1995181006 is about 44667.4490652869. The cubic root of 1995181006 is about 1258.9083107315.

Adding to 1995181006 its reverse (6001815991), we get a palindrome (7996996997).

The spelling of 1995181006 in words is "one billion, nine hundred ninety-five million, one hundred eighty-one thousand, six".