66471451429 has 8 divisors (see below), whose sum is σ = 67065904512. Its totient is φ = 65877107520.

The previous prime is 66471451427. The next prime is 66471451451. The reversal of 66471451429 is 92415417466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66471451429 - 2¹ = 66471451427 is a prime.

It is a super-2 number, since 2×66471451429² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66471451427) 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 7 ways as a sum of consecutive naturals, for example, 1657444 + ... + 1697074.

It is an arithmetic number, because the mean of its divisors is an integer number (8383238064).

Almost surely, 2^66471451429 is an apocalyptic number.

It is an amenable number.

66471451429 is a deficient number, since it is larger than the sum of its proper divisors (594453083).

66471451429 is a wasteful number, since it uses less digits than its factorization.

66471451429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54587.

The product of its digits is 1451520, while the sum is 49.

The spelling of 66471451429 in words is "sixty-six billion, four hundred seventy-one million, four hundred fifty-one thousand, four hundred twenty-nine".