65640112451206 has 16 divisors (see below), whose sum is σ = 100226103598080. Its totient is φ = 32232490346440.

The previous prime is 65640112451189. The next prime is 65640112451209. The reversal of 65640112451206 is 60215421104656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65640112451209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269651446 + ... + 269894761.

It is an arithmetic number, because the mean of its divisors is an integer number (6264131474880).

Almost surely, 2^{65640112451206} is an apocalyptic number.

65640112451206 is a deficient number, since it is larger than the sum of its proper divisors (34585991146874).

65640112451206 is a wasteful number, since it uses less digits than its factorization.

65640112451206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539547299.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 65640112451206 in words is "sixty-five trillion, six hundred forty billion, one hundred twelve million, four hundred fifty-one thousand, two hundred six".