66590853453 has 12 divisors (see below), whose sum is σ = 96192156060. Its totient is φ = 44391424896.

The previous prime is 66590853451. The next prime is 66590853463. The reversal of 66590853453 is 35435809566.

It is a happy number.

66590853453 is a `hidden beast` number, since 6 + 6 + 59 + 0 + 8 + 534 + 53 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 55137144969 + 11453708484 = 234813^2 + 107022^2 .

It is not a de Polignac number, because 66590853453 - 2¹ = 66590853451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66590853453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66590853451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28108 + ... + 366021.

It is an arithmetic number, because the mean of its divisors is an integer number (8016013005).

Almost surely, 2^66590853453 is an apocalyptic number.

It is an amenable number.

66590853453 is a deficient number, since it is larger than the sum of its proper divisors (29601302607).

66590853453 is a wasteful number, since it uses less digits than its factorization.

66590853453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412908 (or 412905 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 54.

The spelling of 66590853453 in words is "sixty-six billion, five hundred ninety million, eight hundred fifty-three thousand, four hundred fifty-three".