66212455062 has 64 divisors (see below), whose sum is σ = 150285735936. Its totient is φ = 19294281600.

The previous prime is 66212455051. The next prime is 66212455093. The reversal of 66212455062 is 26055421266.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 66212455062.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1518 + ... + 363905.

It is an arithmetic number, because the mean of its divisors is an integer number (2348214624).

Almost surely, 2^66212455062 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66212455062, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75142867968).

66212455062 is an abundant number, since it is smaller than the sum of its proper divisors (84073280874).

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

66212455062 is a wasteful number, since it uses less digits than its factorization.

66212455062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365565.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 66212455062 in words is "sixty-six billion, two hundred twelve million, four hundred fifty-five thousand, sixty-two".