1663168130 has 32 divisors (see below), whose sum is σ = 3311131824. Its totient is φ = 597494016.

The previous prime is 1663168121. The next prime is 1663168139. The reversal of 1663168130 is 318613661.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1663168121) and next prime (1663168139).

It can be written as a sum of positive squares in 8 ways, for example, as 923491321 + 739676809 = 30389^2 + 27197^2 .

It is a super-2 number, since 2×1663168130² = 5532256457295393800, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1663168139) 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, 168077 + ... + 177696.

Almost surely, 2^1663168130 is an apocalyptic number.

1663168130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1663168130 is a deficient number, since it is larger than the sum of its proper divisors (1647963694).

1663168130 is a wasteful number, since it uses less digits than its factorization.

1663168130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345830.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 1663168130 is about 40781.9583884835. The cubic root of 1663168130 is about 1184.8009255689.

The spelling of 1663168130 in words is "one billion, six hundred sixty-three million, one hundred sixty-eight thousand, one hundred thirty".