1663113100 has 36 divisors (see below), whose sum is σ = 3937044888. Its totient is φ = 604768000.

The previous prime is 1663113071. The next prime is 1663113113. The reversal of 1663113100 is 13113661.

It is a happy number.

It is a super-2 number, since 2×1663113100² = 5531890366783220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 754861 + ... + 757060.

It is an arithmetic number, because the mean of its divisors is an integer number (109362358).

Almost surely, 2^1663113100 is an apocalyptic number.

1663113100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1663113100 is an abundant number, since it is smaller than the sum of its proper divisors (2273931788).

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

1663113100 is a wasteful number, since it uses less digits than its factorization.

1663113100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511946 (or 1511939 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1663113100 is about 40781.2836973041. The cubic root of 1663113100 is about 1184.7878580758.

Adding to 1663113100 its reverse (13113661), we get a palindrome (1676226761).

The spelling of 1663113100 in words is "one billion, six hundred sixty-three million, one hundred thirteen thousand, one hundred".