66320453034 has 96 divisors (see below), whose sum is σ = 163869848064. Its totient is φ = 19188433440.

The previous prime is 66320453029. The next prime is 66320453051. The reversal of 66320453034 is 43035402366.

66320453034 is a `hidden beast` number, since 66 + 32 + 0 + 4 + 530 + 34 = 666.

66320453034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 66320453034.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2550969 + ... + 2576835.

It is an arithmetic number, because the mean of its divisors is an integer number (1706977584).

Almost surely, 2^66320453034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66320453034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81934924032).

66320453034 is an abundant number, since it is smaller than the sum of its proper divisors (97549395030).

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

66320453034 is a wasteful number, since it uses less digits than its factorization.

66320453034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26472 (or 26469 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

The spelling of 66320453034 in words is "sixty-six billion, three hundred twenty million, four hundred fifty-three thousand, thirty-four".