66505462162 has 4 divisors (see below), whose sum is σ = 99758193246. Its totient is φ = 33252731080.

The previous prime is 66505462123. The next prime is 66505462183. The reversal of 66505462162 is 26126450566.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 62000502001 + 4504960161 = 248999^2 + 67119^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16626365539 + ... + 16626365542.

Almost surely, 2^66505462162 is an apocalyptic number.

66505462162 is a deficient number, since it is larger than the sum of its proper divisors (33252731084).

66505462162 is a wasteful number, since it uses less digits than its factorization.

66505462162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33252731083.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 66505462162 in words is "sixty-six billion, five hundred five million, four hundred sixty-two thousand, one hundred sixty-two".