66352380794452 has 24 divisors (see below), whose sum is σ = 116176808226024. Its totient is φ = 33159007752192.

The previous prime is 66352380794449. The next prime is 66352380794509. The reversal of 66352380794452 is 25449708325366.

66352380794452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 17321211839376 + 49031168955076 = 4161876^2 + 7002226^2 .

It is a super-3 number, since 3×66352380794452³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667633788 + ... + 667733164.

It is an arithmetic number, because the mean of its divisors is an integer number (4840700342751).

Almost surely, 2^{66352380794452} is an apocalyptic number.

It is an amenable number.

66352380794452 is a deficient number, since it is larger than the sum of its proper divisors (49824427431572).

66352380794452 is a wasteful number, since it uses less digits than its factorization.

66352380794452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184155 (or 184153 counting only the distinct ones).

The product of its (nonzero) digits is 261273600, while the sum is 64.

The spelling of 66352380794452 in words is "sixty-six trillion, three hundred fifty-two billion, three hundred eighty million, seven hundred ninety-four thousand, four hundred fifty-two".