1662131330 has 16 divisors (see below), whose sum is σ = 2992538304. Its totient is φ = 664696560.

The previous prime is 1662131329. The next prime is 1662131399. The reversal of 1662131330 is 331312661.

It is a self number, because there is not a number n which added to its sum of digits gives 1662131330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31649 + ... + 65771.

It is an arithmetic number, because the mean of its divisors is an integer number (187033644).

Almost surely, 2^1662131330 is an apocalyptic number.

1662131330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1662131330 is a deficient number, since it is larger than the sum of its proper divisors (1330406974).

1662131330 is a wasteful number, since it uses less digits than its factorization.

1662131330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39001.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 1662131330 is about 40769.2449034809. The cubic root of 1662131330 is about 1184.5546772746.

Adding to 1662131330 its reverse (331312661), we get a palindrome (1993443991).

The spelling of 1662131330 in words is "one billion, six hundred sixty-two million, one hundred thirty-one thousand, three hundred thirty".