66430742216 has 16 divisors (see below), whose sum is σ = 124563114240. Its totient is φ = 33213911760.

The previous prime is 66430742171. The next prime is 66430742227. The reversal of 66430742216 is 61224703466.

It is a super-2 number, since 2×66430742216² (a number of 22 digits) contains 22 as substring.

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, 24905 + ... + 365351.

It is an arithmetic number, because the mean of its divisors is an integer number (7785194640).

Almost surely, 2^66430742216 is an apocalyptic number.

It is an amenable number.

66430742216 is a deficient number, since it is larger than the sum of its proper divisors (58132372024).

66430742216 is a wasteful number, since it uses less digits than its factorization.

66430742216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364844 (or 364840 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 66430742216 in words is "sixty-six billion, four hundred thirty million, seven hundred forty-two thousand, two hundred sixteen".