64066136872203 has 24 divisors (see below), whose sum is σ = 93102229435488. Its totient is φ = 42451300720512.

The previous prime is 64066136872201. The next prime is 64066136872391. The reversal of 64066136872203 is 30227863166046.

64066136872203 is a `hidden beast` number, since 6 + 4 + 0 + 6 + 6 + 1 + 368 + 72 + 203 = 666.

It is not a de Polignac number, because 64066136872203 - 2¹ = 64066136872201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64066136872203.

It is not an unprimeable number, because it can be changed into a prime (64066136872201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15426225 + ... + 19133757.

It is an arithmetic number, because the mean of its divisors is an integer number (3879259559812).

Almost surely, 2^{64066136872203} is an apocalyptic number.

64066136872203 is a deficient number, since it is larger than the sum of its proper divisors (29036092563285).

64066136872203 is a wasteful number, since it uses less digits than its factorization.

64066136872203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3719203 (or 3719200 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 54.

The spelling of 64066136872203 in words is "sixty-four trillion, sixty-six billion, one hundred thirty-six million, eight hundred seventy-two thousand, two hundred three".