66153419271 has 24 divisors (see below), whose sum is σ = 103037429040. Its totient is φ = 40762051200.

The previous prime is 66153419231. The next prime is 66153419291. The reversal of 66153419271 is 17291435166.

66153419271 is a `hidden beast` number, since 6 + 615 + 3 + 4 + 1 + 9 + 27 + 1 = 666.

It is not a de Polignac number, because 66153419271 - 2¹⁵ = 66153386503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66153419231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4710820 + ... + 4724841.

It is an arithmetic number, because the mean of its divisors is an integer number (4293226210).

Almost surely, 2^66153419271 is an apocalyptic number.

66153419271 is a deficient number, since it is larger than the sum of its proper divisors (36884009769).

66153419271 is a wasteful number, since it uses less digits than its factorization.

66153419271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9435727 (or 9435724 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The spelling of 66153419271 in words is "sixty-six billion, one hundred fifty-three million, four hundred nineteen thousand, two hundred seventy-one".