66462266064 has 20 divisors (see below), whose sum is σ = 171694187456. Its totient is φ = 22154088672.

The previous prime is 66462266027. The next prime is 66462266069. The reversal of 66462266064 is 46066226466.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1384630543 = 66462266064 / (6 + 6 + 4 + 6 + 2 + 2 + 6 + 6 + 0 + 6 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66462266069) 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, 692315224 + ... + 692315319.

Almost surely, 2^66462266064 is an apocalyptic number.

It is an amenable number.

66462266064 is an abundant number, since it is smaller than the sum of its proper divisors (105231921392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66462266064 is a wasteful number, since it uses less digits than its factorization.

66462266064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384630554 (or 1384630548 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 48.

The spelling of 66462266064 in words is "sixty-six billion, four hundred sixty-two million, two hundred sixty-six thousand, sixty-four".