74747608666 has 8 divisors (see below), whose sum is σ = 112124337984. Its totient is φ = 37372829340.

The previous prime is 74747608577. The next prime is 74747608679. The reversal of 74747608666 is 66680674747.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 387570 + ... + 547453.

It is an arithmetic number, because the mean of its divisors is an integer number (14015542248).

Almost surely, 2^74747608666 is an apocalyptic number.

74747608666 is a deficient number, since it is larger than the sum of its proper divisors (37376729318).

74747608666 is a wasteful number, since it uses less digits than its factorization.

74747608666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974996.

The product of its (nonzero) digits is 56899584, while the sum is 61.

The spelling of 74747608666 in words is "seventy-four billion, seven hundred forty-seven million, six hundred eight thousand, six hundred sixty-six".