1663828976 has 10 divisors (see below), whose sum is σ = 3223668672. Its totient is φ = 831914480.

The previous prime is 1663828973. The next prime is 1663828997. The reversal of 1663828976 is 6798283661.

It is a super-2 number, since 2×1663828976² = 5536653722754417152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663828973) by changing a digit.

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 as a sum of consecutive naturals, namely, 51994640 + ... + 51994671.

Almost surely, 2^1663828976 is an apocalyptic number.

1663828976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1663828976 is a deficient number, since it is larger than the sum of its proper divisors (1559839696).

1663828976 is a wasteful number, since it uses less digits than its factorization.

1663828976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103989319 (or 103989313 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 56.

The square root of 1663828976 is about 40790.0597695076. The cubic root of 1663828976 is about 1184.9578283817.

The spelling of 1663828976 in words is "one billion, six hundred sixty-three million, eight hundred twenty-eight thousand, nine hundred seventy-six".