31563632116 has 6 divisors (see below), whose sum is σ = 55236356210. Its totient is φ = 15781816056.

The previous prime is 31563632101. The next prime is 31563632117. The reversal of 31563632116 is 61123636513.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 31563075600 + 556516 = 177660^2 + 746^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31563632117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3945454011 + ... + 3945454018.

Almost surely, 2^31563632116 is an apocalyptic number.

It is an amenable number.

31563632116 is a deficient number, since it is larger than the sum of its proper divisors (23672724094).

31563632116 is a wasteful number, since it uses less digits than its factorization.

31563632116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7890908033 (or 7890908031 counting only the distinct ones).

The product of its digits is 58320, while the sum is 37.

The spelling of 31563632116 in words is "thirty-one billion, five hundred sixty-three million, six hundred thirty-two thousand, one hundred sixteen".