196661763 has 40 divisors (see below), whose sum is σ = 312847920. Its totient is φ = 122688000.

The previous prime is 196661741. The next prime is 196661767. The reversal of 196661763 is 367166691.

It is not a de Polignac number, because 196661763 - 2⁹ = 196661251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196661767) 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 in 39 ways as a sum of consecutive naturals, for example, 345343 + ... + 345911.

It is an arithmetic number, because the mean of its divisors is an integer number (7821198).

Almost surely, 2^196661763 is an apocalyptic number.

196661763 is a deficient number, since it is larger than the sum of its proper divisors (116186157).

196661763 is a wasteful number, since it uses less digits than its factorization.

196661763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 840 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 196661763 is about 14023.6144770170. The cubic root of 196661763 is about 581.5315871840.

The spelling of 196661763 in words is "one hundred ninety-six million, six hundred sixty-one thousand, seven hundred sixty-three".