74666221644 has 48 divisors (see below), whose sum is σ = 199131561216. Its totient is φ = 21330888000.

The previous prime is 74666221607. The next prime is 74666221697. The reversal of 74666221644 is 44612266647.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 74666221593 and 74666221602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 822139 + ... + 908429.

It is an arithmetic number, because the mean of its divisors is an integer number (4148574192).

Almost surely, 2^74666221644 is an apocalyptic number.

It is an amenable number.

74666221644 is an abundant number, since it is smaller than the sum of its proper divisors (124465339572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74666221644 is a wasteful number, since it uses less digits than its factorization.

74666221644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96606 (or 96604 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 48.

The spelling of 74666221644 in words is "seventy-four billion, six hundred sixty-six million, two hundred twenty-one thousand, six hundred forty-four".