66506306030004 has 48 divisors (see below), whose sum is σ = 163351881100800. Its totient is φ = 21001598042976.

The previous prime is 66506306029963. The next prime is 66506306030011. The reversal of 66506306030004 is 40003060360566.

It is a happy number.

It is a super-2 number, since 2×66506306030004² (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 15 ways as a sum of consecutive naturals, for example, 9590827 + ... + 14999885.

It is an arithmetic number, because the mean of its divisors is an integer number (3403164189600).

Almost surely, 2^{66506306030004} is an apocalyptic number.

It is an amenable number.

66506306030004 is an abundant number, since it is smaller than the sum of its proper divisors (96845575070796).

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

66506306030004 is a wasteful number, since it uses less digits than its factorization.

66506306030004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5463012 (or 5463010 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 39.

The spelling of 66506306030004 in words is "sixty-six trillion, five hundred six billion, three hundred six million, thirty thousand, four".