66541464301 has 16 divisors (see below), whose sum is σ = 71990514288. Its totient is φ = 61139865600.

The previous prime is 66541464293. The next prime is 66541464323. The reversal of 66541464301 is 10346414566.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 9692599401 + 56848864900 = 98451^2 + 238430^2 .

It is a cyclic number.

It is not a de Polignac number, because 66541464301 - 2³ = 66541464293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66541467301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10200921 + ... + 10207441.

It is an arithmetic number, because the mean of its divisors is an integer number (4499407143).

Almost surely, 2^66541464301 is an apocalyptic number.

It is an amenable number.

66541464301 is a deficient number, since it is larger than the sum of its proper divisors (5449049987).

66541464301 is a wasteful number, since it uses less digits than its factorization.

66541464301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10032.

The product of its (nonzero) digits is 207360, while the sum is 40.

Adding to 66541464301 its reverse (10346414566), we get a palindrome (76887878867).

The spelling of 66541464301 in words is "sixty-six billion, five hundred forty-one million, four hundred sixty-four thousand, three hundred one".