1663910106 has 16 divisors (see below), whose sum is σ = 3328686144. Its totient is φ = 554492384.

The previous prime is 1663910099. The next prime is 1663910117. The reversal of 1663910106 is 6010193661.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9606 + ... + 58481.

It is an arithmetic number, because the mean of its divisors is an integer number (208042884).

Almost surely, 2^1663910106 is an apocalyptic number.

1663910106 is an abundant number, since it is smaller than the sum of its proper divisors (1664776038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1663910106 is a wasteful number, since it uses less digits than its factorization.

1663910106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72165.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 1663910106 is about 40791.0542398698. The cubic root of 1663910106 is about 1184.9770879866.

The spelling of 1663910106 in words is "one billion, six hundred sixty-three million, nine hundred ten thousand, one hundred six".