181632630716 has 12 divisors (see below), whose sum is σ = 317862763680. Its totient is φ = 90814698240.

The previous prime is 181632630713. The next prime is 181632630737. The reversal of 181632630716 is 617036236181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181632630713) 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, 131045 + ... + 616796.

It is an arithmetic number, because the mean of its divisors is an integer number (26488563640).

Almost surely, 2^181632630716 is an apocalyptic number.

It is an amenable number.

181632630716 is a deficient number, since it is larger than the sum of its proper divisors (136230132964).

181632630716 is a wasteful number, since it uses less digits than its factorization.

181632630716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808564 (or 808562 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

Adding to 181632630716 its reverse (617036236181), we get a palindrome (798668866897).

The spelling of 181632630716 in words is "one hundred eighty-one billion, six hundred thirty-two million, six hundred thirty thousand, seven hundred sixteen".