64306655256231 has 20 divisors (see below), whose sum is σ = 96302586944784. Its totient is φ = 42764193000000.

The previous prime is 64306655256211. The next prime is 64306655256269. The reversal of 64306655256231 is 13265255660346.

It is a happy number.

64306655256231 is a `hidden beast` number, since 6 + 4 + 3 + 0 + 6 + 6 + 5 + 5 + 2 + 5 + 623 + 1 = 666.

It is not a de Polignac number, because 64306655256231 - 2¹¹ = 64306655254183 is a prime.

It is a super-2 number, since 2×64306655256231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64306655256211) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 989879395 + ... + 989944356.

Almost surely, 2^{64306655256231} is an apocalyptic number.

64306655256231 is a deficient number, since it is larger than the sum of its proper divisors (31995931688553).

64306655256231 is a wasteful number, since it uses less digits than its factorization.

64306655256231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979824164 (or 1979824155 counting only the distinct ones).

The product of its (nonzero) digits is 23328000, while the sum is 54.

The spelling of 64306655256231 in words is "sixty-four trillion, three hundred six billion, six hundred fifty-five million, two hundred fifty-six thousand, two hundred thirty-one".