66400226236004 has 12 divisors (see below), whose sum is σ = 116205564437424. Its totient is φ = 33198636396744.

The previous prime is 66400226235989. The next prime is 66400226236009. The reversal of 66400226236004 is 40063262200466.

It is not an unprimeable number, because it can be changed into a prime (66400226236009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369079142 + ... + 369259005.

It is an arithmetic number, because the mean of its divisors is an integer number (9683797036452).

Almost surely, 2^{66400226236004} is an apocalyptic number.

It is an amenable number.

66400226236004 is a deficient number, since it is larger than the sum of its proper divisors (49805338201420).

66400226236004 is a wasteful number, since it uses less digits than its factorization.

66400226236004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738360634 (or 738360632 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 41.

The spelling of 66400226236004 in words is "sixty-six trillion, four hundred billion, two hundred twenty-six million, two hundred thirty-six thousand, four".