1163680637 has 4 divisors (see below), whose sum is σ = 1329920736. Its totient is φ = 997440540.

The previous prime is 1163680619. The next prime is 1163680643. The reversal of 1163680637 is 7360863611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1163680637 - 2²⁰ = 1162632061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1163680594 and 1163680603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163680657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83120039 + ... + 83120052.

It is an arithmetic number, because the mean of its divisors is an integer number (332480184).

Almost surely, 2^1163680637 is an apocalyptic number.

It is an amenable number.

1163680637 is a deficient number, since it is larger than the sum of its proper divisors (166240099).

1163680637 is an equidigital number, since it uses as much as digits as its factorization.

1163680637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166240098.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 1163680637 is about 34112.7635497331. The cubic root of 1163680637 is about 1051.8276971707.

The spelling of 1163680637 in words is "one billion, one hundred sixty-three million, six hundred eighty thousand, six hundred thirty-seven".