66162464527 has 4 divisors (see below), whose sum is σ = 67776183216. Its totient is φ = 64548745840.

The previous prime is 66162464503. The next prime is 66162464549. The reversal of 66162464527 is 72546426166.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66162464527 - 2¹¹ = 66162462479 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66162464597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 806859283 + ... + 806859364.

It is an arithmetic number, because the mean of its divisors is an integer number (16944045804).

Almost surely, 2^66162464527 is an apocalyptic number.

66162464527 is a deficient number, since it is larger than the sum of its proper divisors (1613718689).

66162464527 is a wasteful number, since it uses less digits than its factorization.

66162464527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613718688.

The product of its digits is 2903040, while the sum is 49.

The spelling of 66162464527 in words is "sixty-six billion, one hundred sixty-two million, four hundred sixty-four thousand, five hundred twenty-seven".