65631106 has 4 divisors (see below), whose sum is σ = 98446662. Its totient is φ = 32815552.

The previous prime is 65631091. The next prime is 65631107. The reversal of 65631106 is 60113656.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50537881 + 15093225 = 7109^2 + 3885^2 .

It is not an unprimeable number, because it can be changed into a prime (65631107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16407775 + ... + 16407778.

Almost surely, 2^65631106 is an apocalyptic number.

65631106 is a deficient number, since it is larger than the sum of its proper divisors (32815556).

65631106 is a wasteful number, since it uses less digits than its factorization.

65631106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32815555.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 65631106 is about 8101.3027347458. The cubic root of 65631106 is about 403.3696710805.

The spelling of 65631106 in words is "sixty-five million, six hundred thirty-one thousand, one hundred six".