66162228416 has 28 divisors (see below), whose sum is σ = 131300189520. Its totient is φ = 33078716160.

The previous prime is 66162228409. The next prime is 66162228439. The reversal of 66162228416 is 61482226166.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1138301 + ... + 1195011.

Almost surely, 2^66162228416 is an apocalyptic number.

It is an amenable number.

66162228416 is a deficient number, since it is larger than the sum of its proper divisors (65137961104).

66162228416 is a wasteful number, since it uses less digits than its factorization.

66162228416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74952 (or 74942 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The spelling of 66162228416 in words is "sixty-six billion, one hundred sixty-two million, two hundred twenty-eight thousand, four hundred sixteen".