74516161647 has 4 divisors (see below), whose sum is σ = 99354882200. Its totient is φ = 49677441096.

The previous prime is 74516161631. The next prime is 74516161649. The reversal of 74516161647 is 74616161547.

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

It is not a de Polignac number, because 74516161647 - 2⁴ = 74516161631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74516161596 and 74516161605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74516161649) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 12419360272 + ... + 12419360277.

It is an arithmetic number, because the mean of its divisors is an integer number (24838720550).

Almost surely, 2^74516161647 is an apocalyptic number.

74516161647 is a deficient number, since it is larger than the sum of its proper divisors (24838720553).

74516161647 is a wasteful number, since it uses less digits than its factorization.

74516161647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24838720552.

The product of its digits is 846720, while the sum is 48.

The spelling of 74516161647 in words is "seventy-four billion, five hundred sixteen million, one hundred sixty-one thousand, six hundred forty-seven".