74666944966648 has 16 divisors (see below), whose sum is σ = 140442163841880. Its totient is φ = 37215701275488.

The previous prime is 74666944966619. The next prime is 74666944966751. The reversal of 74666944966648 is 84666944966647.

It is a super-2 number, since 2×74666944966648² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 14721398286 + ... + 14721403357.

Almost surely, 2^{74666944966648} is an apocalyptic number.

It is an amenable number.

74666944966648 is a deficient number, since it is larger than the sum of its proper divisors (65775218875232).

74666944966648 is a wasteful number, since it uses less digits than its factorization.

74666944966648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29442801966 (or 29442801962 counting only the distinct ones).

The product of its digits is 54177693696, while the sum is 85.

Subtracting 74666944966648 from its reverse (84666944966647), we obtain a palindrome (9999999999999).

The spelling of 74666944966648 in words is "seventy-four trillion, six hundred sixty-six billion, nine hundred forty-four million, nine hundred sixty-six thousand, six hundred forty-eight".