66015051453 has 12 divisors (see below), whose sum is σ = 102690080220. Its totient is φ = 40624646976.

The previous prime is 66015051451. The next prime is 66015051601. The reversal of 66015051453 is 35415051066.

66015051453 is a `hidden beast` number, since 6 + 6 + 0 + 1 + 505 + 145 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15990361209 + 50024690244 = 126453^2 + 223662^2 .

It is not a de Polignac number, because 66015051453 - 2¹ = 66015051451 is a prime.

It is a super-2 number, since 2×66015051453² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66015051451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 282115488 + ... + 282115721.

It is an arithmetic number, because the mean of its divisors is an integer number (8557506685).

Almost surely, 2^66015051453 is an apocalyptic number.

It is an amenable number.

66015051453 is a deficient number, since it is larger than the sum of its proper divisors (36675028767).

66015051453 is a wasteful number, since it uses less digits than its factorization.

66015051453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564231228 (or 564231225 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 66015051453 in words is "sixty-six billion, fifteen million, fifty-one thousand, four hundred fifty-three".