1663134123 has 32 divisors (see below), whose sum is σ = 2693965824. Its totient is φ = 890929152.

The previous prime is 1663134119. The next prime is 1663134131. The reversal of 1663134123 is 3214313661.

It is not a de Polignac number, because 1663134123 - 2² = 1663134119 is a prime.

It is a super-2 number, since 2×1663134123² = 5532030222173958258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1663134103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82686 + ... + 100812.

It is an arithmetic number, because the mean of its divisors is an integer number (84186432).

Almost surely, 2^1663134123 is an apocalyptic number.

1663134123 is a deficient number, since it is larger than the sum of its proper divisors (1030831701).

1663134123 is a wasteful number, since it uses less digits than its factorization.

1663134123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18411.

The product of its digits is 7776, while the sum is 30.

The square root of 1663134123 is about 40781.5414495333. The cubic root of 1663134123 is about 1184.7928502579.

Adding to 1663134123 its reverse (3214313661), we get a palindrome (4877447784).

The spelling of 1663134123 in words is "one billion, six hundred sixty-three million, one hundred thirty-four thousand, one hundred twenty-three".