66404460325302 has 48 divisors (see below), whose sum is σ = 157647433349952. Its totient is φ = 20033918066160.

The previous prime is 66404460325279. The next prime is 66404460325363. The reversal of 66404460325302 is 20352306440466.

66404460325302 is a `hidden beast` number, since 6 + 6 + 4 + 0 + 4 + 4 + 603 + 2 + 5 + 30 + 2 = 666.

It is a super-2 number, since 2×66404460325302² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 738668848 + ... + 738758739.

It is an arithmetic number, because the mean of its divisors is an integer number (3284321528124).

Almost surely, 2^{66404460325302} is an apocalyptic number.

66404460325302 is an abundant number, since it is smaller than the sum of its proper divisors (91242973024650).

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

66404460325302 is a wasteful number, since it uses less digits than its factorization.

66404460325302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477427833 (or 1477427830 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 45.

Adding to 66404460325302 its reverse (20352306440466), we get a palindrome (86756766765768).

The spelling of 66404460325302 in words is "sixty-six trillion, four hundred four billion, four hundred sixty million, three hundred twenty-five thousand, three hundred two".