66254013413 has 16 divisors (see below), whose sum is σ = 76992814080. Its totient is φ = 55840752000.

The previous prime is 66254013401. The next prime is 66254013421. The reversal of 66254013413 is 31431045266.

66254013413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 66254013413 - 2⁸ = 66254013157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66254013493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181013 + ... + 406538.

It is an arithmetic number, because the mean of its divisors is an integer number (4812050880).

Almost surely, 2^66254013413 is an apocalyptic number.

It is an amenable number.

66254013413 is a deficient number, since it is larger than the sum of its proper divisors (10738800667).

66254013413 is a wasteful number, since it uses less digits than its factorization.

66254013413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587828.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 66254013413 its reverse (31431045266), we get a palindrome (97685058679).

The spelling of 66254013413 in words is "sixty-six billion, two hundred fifty-four million, thirteen thousand, four hundred thirteen".